KR102546733B1 - 표시 장치 - Google Patents
표시 장치 Download PDFInfo
- Publication number
- KR102546733B1 KR102546733B1 KR1020180037528A KR20180037528A KR102546733B1 KR 102546733 B1 KR102546733 B1 KR 102546733B1 KR 1020180037528 A KR1020180037528 A KR 1020180037528A KR 20180037528 A KR20180037528 A KR 20180037528A KR 102546733 B1 KR102546733 B1 KR 102546733B1
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- KR
- South Korea
- Prior art keywords
- light emitting
- electrode
- disposed
- layer
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
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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
- H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
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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
- H10K59/121—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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Abstract
Description
도 2는 도 1에 도시된 하나의 화소의 등가 회로도이다.
도 3은 도 1에 도시된 하나의 화소를 개략적으로 나타낸 사시도이다.
도 4는 도 3의 I-I` 선을 따라 자른 단면도이다.
도 5는 도 3의 II-II` 선을 따라 자른 단면도이다.
도 6은 하나의 발광 소자를 나타낸 사시도이다.
도 7은 본 발명의 일 실시예에 따른 복수의 화소 및 반사층을 개략적으로 나타낸 평면도이다.
도 8은 출광 각도에 따른 발광 소자(LED)의 출광량을 개략적으로 나타낸 그래프이다.
도 9a 내지 도 9g는 본 발명의 일 실시예에 따른 표시 장치의 제조 방법을 설명하기 위한 사시도 및 단면도이다.
도 10은 본 발명의 다른 일 실시예에 따른 복수의 화소 및 반사층을 개략적으로 나타낸 평면도이다.
도 11은 본 발명의 또 다른 일 실시예에 따른 표시 장치의 단면도이다.
도 12는 본 발명의 또 다른 일 실시예에 따른 표시 장치의 단면도이다.
도 13은 본 발명의 또 다른 일 실시예에 따른 표시 장치의 단면도이다.
도 14는 본 발명의 또 다른 일 실시예에 따른 표시 장치의 단면도이다.
도 15는 본 발명의 또 다른 일 실시예에 따른 표시 장치의 단면도이다.
130: 구동 회로부 211: 제1 전극
221: 제2 전극 235: 제1 절연층
236: 제2 절연층 237: 제3 절연층
240: 광산란 입자 250: 반사층
310: 편광층 LED: 발광 소자
CE1: 제1 컨택 전극 CE2: 제2 컨택 전극
Claims (20)
- 기판;
상기 기판 상에 배치된 박막 트랜지스터;
상기 기판 상에 배치되고, 상기 박막 트랜지스터에 연결된 제1 전극;
상기 기판 상에 상기 제1 전극과 이격되어 배치된 제2 전극;
상기 제1 및 제2 전극 사이에 배치되고, 상기 제1 및 제2 전극에 각각 전기적으로 연결된 복수의 발광 소자;
상기 복수의 발광 소자들 각각과 두께 방향으로 중첩하는 반사층; 및
상기 복수의 발광 소자들과 상기 반사층 사이에 배치된 절연층을 포함하고,
상기 복수의 발광 소자는 각각 제1 반도체층, 상기 제1 반도체층 상에 배치된 활성층, 및 상기 활성층 상에 배치된 제2 반도체층을 포함하며
상기 반사층 중 적어도 일부분은 상기 복수의 발광 소자들과 상기 기판의 상면에 평행한 방향으로 중첩하는 표시 장치. - 제1 항에 있어서,
상기 절연층 및 상기 반사층은 상기 제1 전극, 상기 제2 전극 및 상기 발광 소자를 덮는 표시 장치. - 제1 항에 있어서,
상기 반사층의 양 단부는 경사면을 갖고,
상기 경사면은 상기 발광 소자의 장축 방향으로 서로 대향하여 위치하는 표시 장치. - 제1 항에 있어서,
상기 기판 상의 복수의 화소를 포함하고,
상기 반사층은 일 방향을 따라 배치된 복수의 화소를 덮는 표시 장치. - 제1 항에 있어서,
상기 기판 상의 복수의 화소를 포함하고,
상기 반사층은 각각의 화소를 덮는 아일랜드 형태를 갖는 표시 장치. - 제1 항에 있어서,
상기 제1 및 제2 전극은 동일층 상에 배치되고,
상기 제2 전극은 상기 제1 전극을 사이에 두고 서로 이격되어 배치된 두 개의 제2 전극을 포함하는 표시 장치. - 제1 항에 있어서,
상기 제1 및 제2 전극은 각각 ITO(indium tin oxide), IZO(indium zinc oxide), ZnO(zinc oxide) 및 ITZO(indium tin zinc oxide) 중 적어도 하나를 포함하는 표시 장치. - 제1 항에 있어서,
상기 발광 소자와 상기 제2 전극 상에 배치되어, 상기 발광 소자 및 상기 제2 전극에 직접 접촉하는 제1 컨택 전극; 및
상기 제1 전극과 상기 발광 소자 상에 배치되어, 상기 제1 전극 및 상기 발광 소자에 직접 접촉하는 제2 컨택 전극;을 더 포함하는 표시 장치. - 제1 항에 있어서,
상기 발광 소자 상에 배치된 제1 절연층을 더 포함하고,
상기 제1 절연층은 상기 제1 및 제2 전극과 중첩하지 않는 표시 장치. - 제1 항에 있어서,
상기 발광 소자 및 상기 제2 전극 상에 배치된 제2 절연층을 더 포함하고,
상기 제2 절연층은 상기 제1 전극과 중첩하지 않는 표시 장치. - 제1 항에 있어서,
상기 발광 소자는 원기둥 형태를 갖고,
상기 발광 소자의 직경은 100nm 내지 1㎛인 표시 장치. - 제1 항에 있어서,
상기 절연층 내에 배치된 광산란 입자를 더 포함하고,
상기 광산란 입자는 상기 절연층과 다른 굴절률을 갖는 표시 장치. - 제1 항에 있어서,
상기 반사층은 요철 패턴을 갖는 표시 장치. - 제1 항에 있어서,
상기 기판은 광 가이드 영역 및 출광 영역을 포함하고,
상기 제1 및 제2 전극은 상기 기판의 상기 광 가이드 영역에 배치되고,
상기 발광 소자로부터 방출된 광은 상기 기판의 상기 출광 영역을 통해 방출되는 표시 장치. - 제14 항에 있어서,
상기 제1 및 2 전극은 각각 Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti 및 Cu 중 적어도 하나를 포함하는 표시 장치. - 제1 항에 있어서,
상기 기판을 사이에 두고 상기 발광 소자와 이격되어 배치된 편광층을 더 포함하는 표시 장치. - 제16 항에 있어서,
상기 기판과 상기 편광층 사이에 배치된 색 변환층을 더 포함하는 표시 장치. - 기판;
상기 기판 상에 배치된 박막 트랜지스터;
상기 기판 상에 배치되고, 상기 박막 트랜지스터에 연결된 제1 전극;
상기 기판 상에 상기 제1 전극과 이격되어 배치된 제2 전극;
상기 제1 및 제2 전극 사이에 배치되고, 상기 제1 및 제2 전극에 각각 전기적으로 연결된 복수의 발광 소자;
상기 복수의 발광 소자들을 덮도록 배치된 절연층;
상기 절연층 내에 배치된 광산란 입자; 및
상기 기판의 하면에 배치된 편광층;을 포함하고,
상기 복수의 발광 소자는 각각 제1 반도체층, 상기 제1 반도체층 상에 배치된 활성층, 및 상기 활성층 상에 배치된 제2 반도체층을 포함하는 표시 장치. - 제18 항에 있어서,
상기 제1 및 제2 전극은 각각 ITO(indium tin oxide), IZO(indium zinc oxide), ZnO(zinc oxide) 및 ITZO(indium tin zinc oxide) 중 적어도 하나를 포함하는 표시 장치. - 제18 항에 있어서,
상기 발광 소자와 상기 제2 전극 상에 배치되어, 상기 발광 소자 및 상기 제2 전극에 직접 접촉하는 제1 컨택 전극; 및
상기 제1 전극과 상기 발광 소자 상에 배치되어, 상기 제1 전극 및 상기 발광 소자에 직접 접촉하는 제2 컨택 전극;을 더 포함하는 표시 장치.
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