ORGANIC LIGHT-EMITTING DISPLAY DEVICE

• Main Authors: KWON WON JU, HONG SANG MIN, JEONG HEE SEONG, SUNG HYANG KI
• Format: Patent
• Language: English; Japanese
• Published: 06.05.2021
• Subjects: ADVERTISING; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LABELS OR NAME-PLATES; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS

To provide an organic light-emitting display device in which the side surface color shift phenomenon is reduced and which has excellent visibility while minimizing the characteristic difference between pixels.SOLUTION: In an organic light-emitting display device including a red pixel, a green pixel, and a blue pixel, each pixel includes: a first insulating layer 117 disposed on a substrate; a connection electrode CM disposed on the first insulating layer; a second insulating layer 118 disposed so as to cover the connection electrode on the first insulating layer; an organic light-emitting diode disposed on the second insulating layer and including a pixel electrode 210, an intermediate layer 220 including an organic light-emitting layer, and a counter electrode 230; a pixel defining film 119 that covers an edge of the pixel electrode and defines a light-emitting region by an opening part that exposes a central part of the pixel electrode; and a veer hole VH provided to the second insulating layer so that the pixel electrode is connected to the connection electrode. The separation distance d1 between a light-emitting region EA and the veer hole is different depending on the red pixel, the green pixel, and the blue pixel.SELECTED DRAWING: Figure 4B 【課題】画素間の特性差を最小化させながら、側面カラーシフト現象を減らし、優れた視認性を確保することができる有機発光表示装置を提供する。【解決手段】赤色画素、緑色画素及び青色画素を含む有機発光表示装置において、各画素は、基板上に配置された第１絶縁層１１７と、第１絶縁層上に配置された連結電極ＣＭと、第１絶縁層上において、連結電極を覆うように配置された第２絶縁層１１８と、第２絶縁層上に配置され、画素電極２１０、有機発光層を含む中間層２２０、及び対向電極２３０を含む有機発光ダイオードと、画素電極のエッジを覆い、画素電極の中央部を露出させる開口部によって発光領域を定義する画素定義膜１１９と、画素電極が連結電極と接続されるように、第２絶縁層に設けられたビアホールＶＨと、を含み、発光領域ＥＡとビアホールとの隔離距離ｄ１は、赤色画素、緑色画素及び青色画素によって異なる有機発光表示装置である。【選択図】図４Ｂ