DISPLAY DEVICE

• Main Authors: LIM HYO TAEK, KIM BO SEONG, KANG DUK HWAN, LEE SI WOONG, CHOI JAE JIN, TAE HEUNG SIK
• Format: Patent
• Language: English; Korean
• Published: 28.04.2020
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A display device according to one embodiment of the present invention comprises: a first pixel, a second pixel, and a third pixel which exhibit different colors; a first color filter positioned in the first pixel, a second color filter positioned in the second pixel, and a third color filter positioned in the third pixel; and a first light conversion layer overlapping the first color filter, a second light conversion layer overlapping the second color filter, and a third light conversion layer overlapping the third color filter. The first light conversion layer, the second light conversion layer, and the third light conversion layer comprise a plurality of quantum dots, respectively. The amount of the quantum dots included in the first light conversion layer is greater than that of the quantum dots included in the second light conversion layer and the third light conversion layer. According to the present invention, a display device capable of minimizing color difference can be provided. 본 발명의 일 실시예에 따른 표시 장치는 서로 다른 색을 나타내는 제1 화소, 제2 화소 및 제3 화소, 상기 제1 화소에 위치하는 제1 색필터, 상기 제2 화소에 위치하는 제2 색필터, 상기 제3 화소에 위치하는 제3 색필터, 상기 제1 색필터와 중첩하는 제1 광변환층, 상기 제2 색필터와 중첩하는 제2 광변환층, 그리고 상기 제3 색필터와 중첩하는 제3 광변환층을 포함하고, 상기 제1 광변환층, 상기 제2 광변환층 및 상기 제3 광변환층은 각각 복수의 양자점을 포함하고, 상기 제1 광변환층에 포함된 상기 양자점의 양은 상기 제2 광변환층 및 상기 제3 광변환층에 포함된 상기 양자점의 양보다 많다.