DISPLAY DEVICE AND TILED DISPLAY DEVICE

• Main Authors: KIM, Hyun Joon, JEON, Sang Jin, LEE, Kye Uk
• Format: Patent
• Language: English; French; Korean
• Published: 27.07.2023
• Subjects: ADVERTISING; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LABELS OR NAME-PLATES; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS

A display device comprises a pixel. The pixel comprises: a first light-emitting element, a second light-emitting element, and a third light-emitting element which are arranged at equal intervals along a first direction; first pixel electrodes which are arranged along the first direction and make contact with the first to third light-emitting elements; and second pixel electrodes which are arranged along the first direction so as to form pairs with the first pixel electrodes, and make contact with the first to third light-emitting elements. The first to third light-emitting elements each comprise active layers disposed on a first semiconductor layer, a second semiconductor layer, and between the first semiconductor layer and the second semiconductor layer, and comprise a mesa region where one of the first and second semiconductor layers is partially exposed by means of the other. The mesa region of the first light-emitting element makes contact with one of the first pixel electrodes. La présente invention concerne un dispositif d'affichage qui comprend un pixel. Le pixel comprend: un premier élément électroluminescent, un deuxième élément électroluminescent et un troisième élément électroluminescent qui sont agencés à des intervalles égaux selon une première direction; des premières électrodes de pixel qui sont agencées selon la première direction et entrent en contact avec les premier à troisième éléments électroluminescents; et des secondes électrodes de pixel qui sont agencées selon la première direction de façon à former des paires avec les premières électrodes de pixel, et entrent en contact avec les premier à troisième éléments électroluminescents. Les premier à troisième éléments électroluminescents comprennent chacun des couches actives disposées sur une première couche semi-conductrice, une seconde couche semi-conductrice, et entre la première couche semi-conductrice et la seconde couche semi-conductrice, et comprennent une région de structure mesa où une parmi les première et seconde couches semi-conductrices est partiellement exposée au moyen de l'autre. La région de structure mesa du premier élément électroluminescent entre en contact avec une parmi les premières électrodes de pixel. 표시 장치는 화소를 포함한다. 화소는, 제1 방향을 따라 등간격으로 배열된 제1 발광 소자, 제2 발광 소자, 및 제3 발광 소자; 제1 방향을 따라 배열되며, 제1 내지 제3 발광 소자들과 접촉하는 제1 화소 전극들; 및 제1 화소 전극들과 쌍을 이루며 제1 방향을 따라 배열되며, 제1 내지 제3 발광 소자들과 접촉하는 제2 화소 전극들을 포함한다. 제1 내지 제3 발광 소자들 각각은, 제1 반도체층, 제2 반도체층, 및 제1 반도체층 및 제2 반도체층 사이에 배치된 활성층을 포함하되, 제1 및 제2 반도체층들 중 하나가 다른 하나에 의해 부분적으로 노출되는 메사 영역을 포함한다. 제1 발광 소자의 메사 영역은 제1 화소 전극들 중 하나와 접촉한다.