TWI243928B - Light-emitting devices and light-emitting displays - Google Patents

Light-emitting devices and light-emitting displays Download PDF

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Publication number
TWI243928B
TWI243928B TW090119161A TW90119161A TWI243928B TW I243928 B TWI243928 B TW I243928B TW 090119161 A TW090119161 A TW 090119161A TW 90119161 A TW90119161 A TW 90119161A TW I243928 B TWI243928 B TW I243928B
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Taiwan
Prior art keywords
light
emitting
wavelength range
emitting layer
emissive layer
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TW090119161A
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English (en)
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Masaya Adachi
Yoshiyuki Kaneko
Sukekazu Aratani
Shingo Ishihara
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Hitachi Ltd
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Publication of TWI243928B publication Critical patent/TWI243928B/zh

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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
    • H10K50/868—Arrangements for polarized light emission
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • 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
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • 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
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • 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
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/917—Electroluminescent

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)

Description

1243928 A8 B8 C8 D8 六、申請專利範圍 (請先閲脅背面之注意事項再填寫本頁) 7 ·如申請專利範圍第6項記載之顯示裝置，其中前 述偏光分離手段係膽固醇型液晶層，前述相位差板係1 / 4波長板。 8 ·如申請專利範圍第6項記載之顯示裝置，其中前 述發光層之發光色依像素而不同，前述偏光分離手段反射 之光的波長範圍對應該發光色依像素而不同。 9 ·如申請專利範圍第6項記載之顯示裝置，其係一 種進行由構成前述複數的像素之發光層之個別之紅色發光 的發光層、綠色發光之發光層、以及藍色發光之發光層之 其一所構成之彩色顯示之顯示裝置，分別圖案化形成：在 對應該紅色發光之發光層的位置反射紅色光之偏光分離手 段、在對應該綠色發光之發光層之位置反射綠色光之偏光 分離手段、在對應藍色發光之發光層之位置反射藍色光之 偏光分離手段。 經濟部智慧財產局員工消費合作社印製 1 〇 ·如申請專利範圍第6項記載之顯示裝置，其中 前述偏光分離手段係對應構成前述像素之前述發光層之發 光區域，被圖案化形成爲矩陣狀，黑底（black matrix)被 形成在前述偏光分離手段之圖案之間。 1 1 ·如申請專利範圍第1 〇項記載之顯示裝置，其 中前述黑底之開口部比構成前述像素的前述發光層的發光 區域還廣。 1 2 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中前述發光層之發光波長範圍與對應其之位置 的前述偏光分離手段的反射的波長範圍略一致。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）_ 3 _ 1243928 A8 B8 C8 D8 六、申請專利範圍 1 3 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中前述發光層之發光波長之半値寬與對應此之 (請先閱讀背面之注意事項再填寫本頁) 前述偏光分離手段的反射波長的半値寬都是7 5 n m以下 〇 1 4 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中前述發光層之發光的中心波長或成爲最大強 度之波長（峰値波長）與對應該發光層之位置的前述偏光 分離手段的反射的中心波長略一致。 1 5 .如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中對於前述發光層之發光波長範圍，對應該發 光層之發光區域之位置的前述偏光分離手段的反射的波長 範圍窄。 經濟部智慧財產局員工消費合作社印製 1 6 .如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中藉由使反射被形成在對應紅色發光之發光層 之位置之紅色光的偏光分離手段的反射的中心波長比該發 光層的發光的中心波長，或成爲最大強度之波長（峰値波 長）還長，使該發光層之發光波長範圍與該偏光分離手段 之反射的波長範圍在可見光波長範圍內略一致，或使該偏 光分離手段的反射的波長範圍在可見光波長範圍內比該發 光層之發光波長範圍還窄。 1 7 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中於第1基板形成有機電激發光元件，在與第 1基板不同之透明的第2基板形成偏光分離手段，重疊固 定第1基板的有機電激發光元件的形成面與第2基板的偏 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）_ 4 1243928 A8 B8 C8 D8 經濟部智慧財產局員工消費合作社印製 六、申請專利範圍 光分離手段形成面。 1 8 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中基板不中介存在於前述發光層與前述偏光分 離手段之間。 1 9 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中在前述透明電極與前述偏光分離手段之間具 備透明絕緣層。 2 0 ·如申請專利範圍第1項記載之發光元件、或顯 示裝置，其中於前述像素的非發光部份設置分散光吸收性 之顏料之隔壁。 2 1 ·如申請專利範圍第6項記載之顯示裝置，其中 構成前述像素之發光層係發出白色光之發光層，於對應構 成該像素之發光層的發光區域之位置分別圖案化形成：反 射紅色光之偏光分離手段、反射綠色光之偏光分離手段、 反射藍色光之偏光分離手段，進而，在反射紅色光之偏光 分離手段與偏光板之間圖案化形成透過紅色光之彩色濾色 器、在反射綠色光之偏光分離手段與偏光板之間圖案化形 成透過綠色光之彩色濾色器、在反射藍色光之偏光分離手 段與偏光板之間圖案化形成透過藍色光之彩色濾色器。 (請先聞讀背面之注意事項再填寫本頁) •I. 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）-5 -
TW090119161A 2001-01-15 2001-08-06 Light-emitting devices and light-emitting displays TWI243928B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001006513A JP4011292B2 (ja) 2001-01-15 2001-01-15 発光素子、及び表示装置

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Country Status (7)

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US (4) US20020093284A1 (zh)
EP (1) EP1223618B1 (zh)
JP (1) JP4011292B2 (zh)
KR (1) KR100703907B1 (zh)
CN (2) CN1627876B (zh)
DE (1) DE60144138D1 (zh)
TW (1) TWI243928B (zh)

Cited By (2)

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TWI425460B (zh) * 2005-12-22 2014-02-01 Semiconductor Energy Lab 顯示裝置
TWI658581B (zh) * 2015-10-30 2019-05-01 南韓商樂金顯示科技股份有限公司 顯示裝置及其光學組件

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