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Light-emitting display device

A technology of light-emitting display and light-emitting layer, applied in diodes, organic semiconductor devices, semiconductor devices, etc., can solve problems such as increasing driving voltage, thickness difference, and reducing process yield.

Pending Publication Date: 2022-06-28
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When an optical compensation layer for compensating an optical distance in each sub-pixel configured to emit light of a different color is provided in the organic stack between the anode and the cathode, the optical compensation layer causes a difference in thickness between the anode and the cathode, thus increasing the drive voltage
[0006] In addition, specific sub-pixels require an optical compensation layer, thus requiring a separate mask, reducing process yield

Method used

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Embodiment Construction

[0028] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the following description of the embodiments and the drawings, the same or like parts are denoted by the same reference numerals throughout the application. In the following description of the embodiments of the present invention, detailed descriptions of known functions and configurations incorporated herein will be omitted when they would make the gist of the present invention unclear. Also, the names of elements used in the following description of the embodiments of the present invention are chosen in consideration of the convenience of preparing the present application, and thus may be different from the names of parts of actual products.

[0029] The shapes, dimensions, proportions, angles and numbers given in the drawings for the purpose of describing embodiments of the invention are merely examples and the inv...

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Abstract

Disclosed is a light emitting display device in which an optical compensation layer for compensating for an optical distance in each sub-pixel emitting light of different colors is provided together with formation of a thin film transistor array, thereby reducing a driving voltage value required to drive an organic stack and improving process performance.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2020-0183654, filed on December 24, 2020, which is hereby incorporated by reference as if fully set forth herein. technical field [0002] The present invention relates to a display device, and more particularly, to a light-emitting display device in which, together with the formation of an array of thin film transistors, an optical device for compensating for each sub-pixel configured to emit light of a different color is provided. The optical compensation layer of the long distance, thereby reducing the driving voltage value required to drive the organic stack and improving the process performance. Background technique [0003] As society has recently entered the information age, the field of displays for visually displaying electrical information signals has rapidly developed, and in order to meet this development, various displays having excellent properties such as slimness, light weight, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/122H10K59/12H10K50/805H10K59/32H10K59/35H10K50/156H10K50/818H10K50/852H10K2102/351H10K50/18H10K50/19
Inventor 全智娜
Owner LG DISPLAY CO LTD