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Electroluminescent Display Device

An electroluminescent display and light-emitting layer technology, which is applied in the direction of circuits, electrical components, and electric solid-state devices, and can solve problems such as deterioration of the image quality of electroluminescent display devices, uneven light emission, and non-dispersion of the light-emitting layer 50

Active Publication Date: 2019-07-09
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, in the case of the related art, when the light emitting layer 50 is formed in the light emitting region E of the quadrangular structure by a solution process, there is a possibility that the light emitting layer 50 is not spread to the corner "A" of the light emitting region E
[0016] In this case, light emission may be non-uniform between the corner portion "A" of the light emitting region E and the central part "B" of the light emitting region E, which deteriorates the picture quality of the electroluminescent display device.

Method used

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Embodiment Construction

[0035] Advantages and features of the present invention and methods of achieving them will be clarified through the following embodiments described with reference to the accompanying drawings. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Furthermore, the present invention is limited only by the scope of the claims.

[0036] The shapes, dimensions, proportions, angles and numbers disclosed in the drawings for describing the embodiments of the present invention are merely examples, and thus the present invention is not limited to the illustrated details. Like reference numerals denote like elements throughout. In the following description, when it is determined that a detailed description of a related known function or ...

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Abstract

An electroluminesccnt display device includes a first electrode provided on a substrate, a bank disposed on the first electrode and defining a plurality of emission areas above the first electrode, anemission layer provided in the plurality of emission areas and configured to emit light wherein the emission layer in each of the plurality of emission areas has a curved top surface, and a second electrode provided on the bank and the emission layer, wherein among the plurality of emission areas, each of a first emission area and a second emission area is provided with a rounded corner, and wherein a first radius curvature (R1) in the rounded corner of the first emission area is different from a second radius curvature (R2) in the corner of the second emission area.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2017-0180714 filed in Korea on December 27, 2017, which is hereby incorporated by reference as if fully set forth herein. technical field [0003] The present invention relates to an electroluminescent display device, in particular to an electroluminescent display device having a light-emitting layer manufactured by a solution process. Background technique [0004] An electroluminescence display device is provided in such a manner that a light emitting layer is formed between two electrodes. Therefore, when the light emitting layer emits light through the electric field between the two electrodes, an image is displayed on the electroluminescent display device. [0005] The light emitting layer may be formed of an organic material that emits light when excitons are generated by combining electrons and holes and are lowered from an excited state to a g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/50H01L51/52
CPCH10K59/12H10K50/00H10K50/805H10K59/88H10K59/352H10K59/353H10K59/121H10K59/122H10K71/135H10K2102/351H10K59/35H10K50/11H10K50/813H10K50/822H10K71/00
Inventor 尹凖浩白钦日赵玧朱
Owner LG DISPLAY CO LTD
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