JP2019106331A - 有機el表示装置 - Google Patents
有機el表示装置 Download PDFInfo
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- JP2019106331A JP2019106331A JP2017239363A JP2017239363A JP2019106331A JP 2019106331 A JP2019106331 A JP 2019106331A JP 2017239363 A JP2017239363 A JP 2017239363A JP 2017239363 A JP2017239363 A JP 2017239363A JP 2019106331 A JP2019106331 A JP 2019106331A
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- 239000010410 layer Substances 0.000 claims abstract description 449
- 239000010409 thin film Substances 0.000 claims abstract description 54
- 239000003990 capacitor Substances 0.000 claims abstract description 49
- 239000012044 organic layer Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 238000005401 electroluminescence Methods 0.000 claims description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 9
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 229910010272 inorganic material Inorganic materials 0.000 claims description 6
- 239000011147 inorganic material Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 description 27
- 238000007789 sealing Methods 0.000 description 23
- 229910052581 Si3N4 Inorganic materials 0.000 description 11
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 239000004925 Acrylic resin Substances 0.000 description 6
- 229920000178 Acrylic resin Polymers 0.000 description 6
- 238000005530 etching Methods 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 4
- 150000001342 alkaline earth metals Chemical class 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000005525 hole transport Effects 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 238000005019 vapor deposition process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- NJWNEWQMQCGRDO-UHFFFAOYSA-N indium zinc Chemical compound [Zn].[In] NJWNEWQMQCGRDO-UHFFFAOYSA-N 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1255—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs integrated with passive devices, e.g. auxiliary capacitors
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1248—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
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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
- H10K50/81—Anodes
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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
- H10K50/82—Cathodes
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- 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
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1216—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors
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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
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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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
Abstract
Description
<表示装置の構成>
図1は、第1実施形態の有機EL表示装置100の構成を示す平面図である。図1において、アレイ基板10は、画素部11、走査線駆動回路12、映像信号線駆動回路13、及び端子部14を含む。アレイ基板10は、支持基板101(図2参照)の上に薄膜を積層して各種回路及び有機EL素子70(図2参照)を形成した基板であり、アクティブマトリクス基板とも呼ばれる。端子部14には、フレキシブルプリント回路基板15が電気的に接続されている。本実施形態では、フレキシブルプリント回路基板15は、走査線駆動回路12及び映像信号線駆動回路13に各種信号を伝達する集積回路16を含む。
次に、本実施形態の有機EL表示装置100の製造方法について説明する。図5〜図9は、第1実施形態の有機EL表示装置100の製造工程を示す断面図である。
本実施形態では、溝部108の下方に配置する導電層の構成を第1実施形態とは異ならせた例について説明する。なお、本実施形態では、第1実施形態の有機EL表示装置100と共通する部分には、同一の符号を付して説明を省略する。
本実施形態では、画素電極として機能する導電層を少なくとも二層に分けて形成する例について説明する。なお、本実施形態では、第1実施形態の有機EL表示装置100と共通する部分には、同一の符号を付して説明を省略する。
本実施形態では、平面視において有機絶縁層120の開口部120aと重なる領域にも溝部109を配置した例について説明する。なお、本実施形態では、第1実施形態の有機EL表示装置100と共通する部分には、同一の符号を付して説明を省略する。
本実施形態では、溝部108及び溝部109の下方に配置する導電層の構成を第4実施形態とは異ならせた例について説明する。なお、本実施形態では、第1実施形態及び第4実施形態の有機EL表示装置と共通する部分には、同一の符号を付して説明を省略する。
本実施形態では、平面視における溝部108のレイアウトを第1実施形態とは異ならせた例について説明する。なお、本実施形態では、第1実施形態の有機EL表示装置と共通する部分には、同一の符号を付して説明を省略する。
Claims (15)
- 薄膜トランジスタと、
前記薄膜トランジスタを覆う第1絶縁層と、
前記第1絶縁層の上の第1導電層と、
前記第1導電層の上の第2絶縁層と、
前記第2絶縁層の上の第2導電層と、
前記第1導電層、前記第2絶縁層及び前記第2導電層で構成される画素容量と、
前記第2導電層の上に設けられ、平面視において前記第2導電層の一部と重なる位置に開口部を有する第3絶縁層と、
前記第3絶縁層の前記開口部を覆い、発光層を含む有機層と、
を備え、
前記第1絶縁層は、平面視において前記第3絶縁層と重なる位置に第1溝部を有し、
前記画素容量の一部は、前記第1溝部の内側に位置する、有機EL表示装置。 - 前記画素容量の他の一部は、平面視において前記開口部と重なる領域に位置する、請求項1に記載の有機EL表示装置。
- 前記画素容量の他の一部は、前記第1絶縁層の上に設けられた平板状の容量である、請求項2に記載の有機EL表示装置。
- 前記第1絶縁層は、平面視において前記開口部と重なる位置に第2溝部を有し、
前記画素容量の他の一部は、前記第2溝部の内側に位置する、請求項2に記載の有機EL表示装置。 - 前記第2溝部の内側に、前記第2溝部を平坦化する第4絶縁層を有する、請求項4に記載の有機EL表示装置。
- 前記第2導電層は、少なくとも二層の積層構造を有し、
前記第4絶縁層は、前記積層構造のうちの下層側導電層と上層側導電層との間に位置する、請求項5に記載の有機EL表示装置。 - 前記第4絶縁層は、樹脂材料で構成される、請求項5又は6に記載の有機EL表示装置。
- 前記第2導電層は、少なくとも二層の積層構造を有し、
平面視において、前記積層構造のうちの下層側導電層は、前記積層構造のうちの上層側導電層と重ならない部分を有する、請求項1乃至7のいずれか一項に記載の有機EL表示装置。 - 前記第1絶縁層及び前記第3絶縁層は、樹脂材料で構成される、請求項1乃至8のいずれか一項に記載の有機EL表示装置。
- 前記第2絶縁層は、無機材料で構成される、請求項1乃至9のいずれか一項に記載の有機EL表示装置。
- 前記上層側導電層は、銀又は銀合金を含み、
前記下層側導電層は、透光性を有する金属酸化物を含む、請求項6又は8に記載の有機EL表示装置。 - 前記第1溝部は、平面視において前記開口部に沿って配置される、請求項1乃至11のいずれか一項に記載の有機EL表示装置。
- 薄膜トランジスタと、
前記薄膜トランジスタを覆う第1絶縁層と、
前記第1絶縁層の上の第1導電層と、
前記第1導電層の上の第2絶縁層と、
前記第2絶縁層の上の第2導電層と、
前記第2導電層の上に設けられ、平面視において前記第2導電層の一部と重なる位置に開口部を有する第3絶縁層と、
前記第3絶縁層の前記開口部を覆い、発光層を含む有機層と、
を備え、
前記第1絶縁層は、平面視において前記第3絶縁層と重なる位置に第1溝部を有し、
前記第1導電層の一部と前記第2絶縁層の一部と前記第2導電層の一部とは、前記第1溝部の内側に位置する、有機EL表示装置。 - 前記第1絶縁層は、平面視において前記開口部と重なる位置に第2溝部を有し、
前記第1導電層の他の一部と前記第2絶縁層の他の一部と前記第2導電層の他の一部とは、前記第2溝部の内側に位置する、請求項13に記載の有機EL表示装置。 - 前記第1絶縁層の前記第1導電層とは反対の側に、第3導電層が位置し、
前記第1溝部は、前記第3導電層の一部を露出し、
前記第1導電層は、前記第3導電層の前記一部と接している、請求項13に又は請求項14に記載の有機EL表示装置。
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JP2017239363A JP7048292B2 (ja) | 2017-12-14 | 2017-12-14 | 有機el表示装置 |
US16/203,747 US10581031B2 (en) | 2017-12-14 | 2018-11-29 | Organic EL display device |
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KR102638296B1 (ko) * | 2018-03-19 | 2024-02-20 | 삼성디스플레이 주식회사 | 유기발광표시장치 |
CN110289308B (zh) * | 2019-06-28 | 2022-08-26 | 京东方科技集团股份有限公司 | 薄膜晶体管及其制备方法、阵列基板、显示装置 |
KR20210035357A (ko) * | 2019-09-23 | 2021-04-01 | 삼성디스플레이 주식회사 | 표시 장치 |
CN110993817B (zh) * | 2019-11-26 | 2020-12-25 | 武汉华星光电半导体显示技术有限公司 | Oled显示面板 |
CN111584577A (zh) | 2020-05-14 | 2020-08-25 | 深圳市华星光电半导体显示技术有限公司 | 显示面板及其制作方法 |
KR20230103682A (ko) * | 2021-12-31 | 2023-07-07 | 엘지디스플레이 주식회사 | 스토리지 커패시터를 포함하는 디스플레이 장치 |
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