Electroluminescent display device

An electroluminescence display and display device technology, applied in circuits, electrical components, electrical solid devices, etc., can solve problems such as leakage current generation and picture quality degradation

Pending Publication Date: 2021-04-27
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the case of the related art, due to transfer of charge between adjacent sub-pixels, leakage current may be generated, which may result in deterioration of picture quality

Method used

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  • Electroluminescent display device
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Embodiment Construction

[0025] 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.

[0026] 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 electroluminescent display device is disclosed. The electroluminescent display device includes a substrate having thereon a first sub pixel and a second sub pixel; a doping layer between the first sub pixel and the second sub pixel; a first electrode in each of the first sub pixel and the second sub pixel on the substrate; an organic layer with P-type polarity or N-type polarity on the first electrode; and a second electrode on the organic layer. The organic layer provided in the first sub pixel and the organic layer provided in the second sub pixel are spaced apart from each other with the doping layer provided in the boundary area between the first sub pixel and the second sub pixel. The doping layer is doped with dopant whose polarity is opposite to that of the organic layer.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2019-0133406 filed on October 25, 2019, which is hereby incorporated by reference in its entirety as if fully set forth herein. technical field [0003] The invention relates to an electroluminescent display device. Background technique [0004] The electroluminescence display device is provided in such a manner that a light emitting layer is provided between an anode electrode and a cathode electrode, and the light emitting layer emits light using an electric field generated between the two electrodes, thereby displaying an image. [0005] The light emitting layer may be formed of an organic material that emits light when excitons are generated by the combination of electrons and holes and dropped from an excited state to a ground state, or may be formed of an inorganic material such as quantum dots. [0006] The light emitting layer may be confi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/50
CPCH10K59/353H10K59/35H10K59/38H10K59/12H10K50/18H10K59/32H10K59/122H10K50/155H10K50/19H10K50/14H10K50/858H10K50/11H10K2102/351H10K50/125H10K50/15
Inventor 朴泰翰金鍾成崔浩源金东影
Owner LG DISPLAY CO LTD
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