JP2014103109A - 基板の接合方法、封止体の作製方法、及び発光装置の作製方法 - Google Patents
基板の接合方法、封止体の作製方法、及び発光装置の作製方法 Download PDFInfo
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- QUBMWJKTLKIJNN-UHFFFAOYSA-B tin(4+);tetraphosphate Chemical compound [Sn+4].[Sn+4].[Sn+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QUBMWJKTLKIJNN-UHFFFAOYSA-B 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- PSUYMGPLEJLSPA-UHFFFAOYSA-N vanadium zirconium Chemical compound [V].[V].[Zr] PSUYMGPLEJLSPA-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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- 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
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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- C—CHEMISTRY; METALLURGY
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/24—Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
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- 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
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- H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
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Abstract
【解決手段】ガラスフリットを溶融して得られた溶融体または焼結して得られた焼結体であるガラス層に対してレーザ光を照射して加熱する際、従来よりもその加熱の効率を高めるために、ガラス層の上面に接し、且つ該上面の一部が露出するように、レーザ光を吸収する材料をガラス層に付着させ、ガラス層の上面の一部と基板の接合面が接した状態でレーザ光を照射すればよい。
【選択図】図1
Description
本実施の形態では、本発明の一態様の基板の接合方法と、これを用いた封止体の作製方法について説明する。
始めに、光吸収材105として光吸収性を有する粒子を用いる場合について説明する。
続いて、光吸収材105として有機樹脂に分散された光吸収性を有する粒子を用いる場合について説明する。
続いて、光吸収材105として光吸収性を有する薄膜を用いる場合について説明する。
本実施の形態では、本発明の一態様の接合方法を用いた、発光装置の作製方法例について説明する。なお、実施の形態1と重複する部分については、説明を省略するか簡略化して説明する。
本発明の一態様の基板の接合方法が適用された封止体は極めて気密性が高く、例えば有機EL素子、有機半導体素子、有機太陽電池などのように、素子が大気(水分や酸素を含む)に曝されると急速にその性能が低下するような素子が適用された、様々なデバイスに適用することができる。また、本発明の一態様の封止体の作製方法を適用することにより、耐熱性の低いデバイスにも適用可能で、且つ高い生産性で上述した様々なデバイスを作製することができる。
まず、第1の基板としてガラス基板を準備した。
上記サンプルの気密性を評価するための比較サンプルとして、ブラックマトリクス及びカラーフィルタを形成しない工程で作製したサンプルを比較サンプルとして用いた。
作製したサンプル、及び比較サンプルの気密性を評価するため、それぞれを温度65度、湿度90%の環境における保存試験を行い、その際のカルシウム膜の透過率の時間推移を測定した。
101 第1の基板
102 第2の基板
103 フリットペースト
104 ガラス層
105 光吸収材
106 封止領域
107 拡散層
108 ガラス層
111 樹脂
112 薄膜
113 レーザ光
114 射出口
120 発光モジュール
121 カラーフィルタ
122 配線
150 発光装置
200 表示装置
204 FPC
205 外部接続電極
206 配線
208 接続層
211 表示部
212 ソース駆動回路
213 ゲート駆動回路
220 発光素子
221 第1の電極
222 EL層
223 第2の電極
231 トランジスタ
232 トランジスタ
233 トランジスタ
234 トランジスタ
235 絶縁層
236 スペーサ
237 絶縁層
238 絶縁層
239 絶縁層
241 絶縁層
242 ブラックマトリクス
243 カラーフィルタ
Claims (10)
- 第1の基板上に、ガラスフリットの溶融体または焼結体を含むガラス層を形成し、
前記ガラス層の上面に、該上面の一部が露出するように光吸収材を付着させ、
前記ガラス層の前記上面の露出した一部と第2の基板とを密着させ、
前記ガラス層及び前記光吸収材にレーザ光を照射して、前記ガラス層と前記第2の基板とを溶着させる、
基板の接合方法。 - 前記光吸収材は、有機顔料または無機顔料を含むことを特徴とする、
請求項1に記載の、基板の接合方法。 - 前記ガラス層上に、前記光吸収材が分散した樹脂を形成し、
前記樹脂の一部を除去することにより、前記ガラス層上に前記光吸収材を付着させることを特徴とする、
請求項1又は請求項2に記載の、基板の接合方法。 - 前記ガラス層は上面に凹凸形状を有することを特徴とする、
請求項1乃至請求項3のいずれか一に記載の、基板の接合方法。 - 前記ガラス層の端部がテーパ形状となるように、前記ガラス層を前記第1の基板上に形成することを特徴とする、
請求項1乃至請求項4のいずれか一に記載の、基板の接合方法。 - 請求項1乃至請求項5のいずれか一に記載の基板の接合方法において、
前記ガラス層を閉曲線状に形成し、
前記レーザ光を前記ガラス層に沿って走査しながら照射し、
前記第1の基板と、前記第2の基板と、前記ガラス層に囲まれた閉空間を形成する、
封止体の作製方法。 - 第1の基板上に、ガラスフリットの溶融体または焼結体を含むガラス層を閉曲線状に形成し、
前記ガラス層の上面に、該上面の一部が露出するように光吸収材を付着させ、
第2の基板上に、一対の電極間に発光性の有機化合物を含む層が挟持された発光素子を形成し、
前記ガラス層の前記上面の露出した一部と前記第2の基板とを密着させ、
前記発光素子が前記第1の基板と、前記第2の基板と、前記ガラス層に囲まれた閉空間内に設けられるように、前記ガラス層及び前記光吸収材にレーザ光を照射して前記ガラス層と前記第2の基板とを溶着させる、
発光装置の作製方法。 - 請求項7に記載の発光装置の作製方法において、
前記第1の基板上及び前記ガラス層上に、前記光吸収材が分散した樹脂を形成し、
前記樹脂の一部を除去することにより、前記ガラス層上に前記光吸収材を付着させると共に、前記第1の基板のガラス層が設けられていない領域に前記樹脂と前記光吸収材を含むカラーフィルタを形成することを特徴とする、
発光装置の作製方法。 - 前記ガラス層は上面に凹凸形状を有することを特徴とする、
請求項7または請求項8に記載の、発光装置の作製方法。 - 前記ガラス層の端部がテーパ形状となるように、前記ガラス層を前記第1の基板上に形成することを特徴とする、
請求項7乃至請求項9のいずれか一に記載の、発光装置の作製方法。
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