JP7387821B2 - 発光積層構造体およびそれを備えたディスプレイ素子 - Google Patents
発光積層構造体およびそれを備えたディスプレイ素子 Download PDFInfo
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- JP7387821B2 JP7387821B2 JP2022106571A JP2022106571A JP7387821B2 JP 7387821 B2 JP7387821 B2 JP 7387821B2 JP 2022106571 A JP2022106571 A JP 2022106571A JP 2022106571 A JP2022106571 A JP 2022106571A JP 7387821 B2 JP7387821 B2 JP 7387821B2
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- epitaxial
- electrode
- light
- stack
- light emitting
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Classifications
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- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/36—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes
- H01L33/40—Materials therefor
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- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- H01L33/58—Optical field-shaping elements
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- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
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- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- H01L33/38—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes with a particular shape
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Description
Claims (15)
- 順に重なって配置され、それぞれが互いに異なる波長を有する有色光を放出するように構成された第1、第2、および第3エピタキシャルサブユニットを含む複数のエピタキシャルサブユニットと、
前記複数のエピタキシャルサブユニットのうちの隣接した2つのエピタキシャルサブユニットの間に配置された電極と、
前記複数のエピタキシャルサブユニットのうちの隣接した2つのエピタキシャルサブユニットの間に配置された凹凸部と、
前記第1、第2、および第3エピタキシャルサブユニットに共通電圧を印加するための共通接触部と、前記第1、第2、および第3エピタキシャルサブユニットのそれぞれに発光信号を印加するための第1接触部、第2接触部、および第3接触部と、を含む接触部と、を含み、
前記複数のエピタキシャルサブユニットの発光領域および前記電極が互いに重なり合っており、
前記凹凸部の下に配置されたエピタキシャルサブユニットから放出された光は、前記凹凸部を透過し、
前記第1、第2、および第3エピタキシャルサブユニットのそれぞれは、p型半導体層、活性層、およびn型半導体層を含み、
前記第2エピタキシャルサブユニットにおける前記p型半導体層、前記活性層、前記n型半導体層の積層順序は、前記第1エピタキシャルサブユニットおよび前記第3エピタキシャルサブユニットの少なくとも1つにおける前記p型半導体層、前記活性層、前記n型半導体層の積層順序と異なる、発光積層構造体。 - 前記複数のエピタキシャルサブユニットは、独立して駆動可能である、請求項1に記載の発光積層構造体。
- 前記第1、第2、および第3エピタキシャルサブユニットは、互いに異なるエネルギー帯域を有する、請求項1に記載の発光積層構造体。
- さらに、前記隣接する2つのエピタキシャルサブユニットの間に介在する接着層を含み、
前記接着層は、非導電性かつ透光性の特性を有する、請求項1に記載の発光積層構造体。 - 前記第1エピタキシャルサブユニットは、前記第2エピタキシャルサブユニットおよび前記第3エピタキシャルサブユニットよりも長い波長を有する光を生成する、請求項1に記載の発光積層構造体。
- 前記第1エピタキシャルサブユニットは赤色光を放出し、
前記第2エピタキシャルサブユニットおよび前記第3エピタキシャルサブユニットの一方は緑色光を放出し、他方は青色光を放出する、請求項1に記載の発光積層構造体。 - 前記凹凸部は、前記第1エピタキシャルサブユニットと前記第2エピタキシャルサブユニットとの間に配置され、
前記第1エピタキシャルサブユニットから放出された赤色光は、前記凹凸部を透過する、請求項1に記載の発光積層構造体。 - 前記凹凸部は、前記n型半導体層と接して設けられている、請求項1に記載の発光積層構造体。
- 前記凹凸部は、複数設けられている、請求項1に記載の発光積層構造体。
- 前記凹凸部は、凹凸部を有するパターニングされた基板を用いて形成される、請求項1に記載の発光積層構造体。
- 平面視において、前記発光積層構造体は実質的に四角形状を有し、
前記共通接触部、前記第1接触部、前記第2接触部、および前記第3接触部の各々は、前記四角形状の角に対応する領域に配置される、請求項1に記載の発光積層構造体。 - 前記共通接触部は、共通パッド電極および共通パッドを含み、
前記第1接触部は、第1パッド電極および第1パッドを含み、
前記第2接触部は、第2パッド電極および第2パッドを含み、
前記第3接触部は、第3パッド電極および第3パッドを含み、
前記共通パッド電極および前記共通パッドは、互いに重なり合うように実質的に同一の形状を有し、
前記第1パッド電極および前記第1パッドは、互いに重なり合うように実質的に同一の形状を有し、
前記第2パッド電極および前記第2パッドは、互いに重なり合うように実質的に同一の形状を有し、
前記第3パッド電極および前記第3パッドは、互いに重なり合うように実質的に同一の形状を有する、請求項1に記載の発光積層構造体。 - 前記共通パッド電極、前記第1パッド電極、前記第2パッド電極、および前記第3パッド電極は、実質的に同一の物質を含む、請求項12に記載の発光積層構造体。
- 前記電極は、透明導電性物質を含む、請求項1に記載の発光積層構造体。
- 請求項1乃至請求項14のいずれか一項に記載の発光積層構造体を備え、白色光を放射する、ディスプレイ素子。
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US62/617,038 | 2018-01-12 | ||
US16/219,716 US10886327B2 (en) | 2017-12-14 | 2018-12-13 | Light emitting stacked structure and display device having the same |
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JP2020532747A JP7100133B2 (ja) | 2017-12-14 | 2018-12-14 | 発光積層構造体およびそれを備えたディスプレイ素子 |
PCT/KR2018/015888 WO2019117656A1 (en) | 2017-12-14 | 2018-12-14 | Light emitting stacked structure and display device having the same |
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US10886327B2 (en) | 2021-01-05 |
EP3724930A1 (en) | 2020-10-21 |
JP7100133B2 (ja) | 2022-07-12 |
US20240055467A1 (en) | 2024-02-15 |
US20210126044A1 (en) | 2021-04-29 |
WO2019117656A1 (en) | 2019-06-20 |
US20190189681A1 (en) | 2019-06-20 |
KR102601422B1 (ko) | 2023-11-14 |
JP2021507515A (ja) | 2021-02-22 |
CN111213248A (zh) | 2020-05-29 |
EP3724930A4 (en) | 2021-09-08 |
BR112020011233A2 (pt) | 2020-11-17 |
CN111524926A (zh) | 2020-08-11 |
KR20200088822A (ko) | 2020-07-23 |
CN111525006B (zh) | 2024-07-05 |
JP2022141706A (ja) | 2022-09-29 |
US11804512B2 (en) | 2023-10-31 |
CN111525006A (zh) | 2020-08-11 |
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