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Display device

A technology for display devices and display areas, applied in the direction of organic semiconductor devices, electrical components, diodes, etc., can solve problems such as damage

Pending Publication Date: 2022-03-18
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the preliminary electrode layer may be arranged on the pad electrode, and the pad electrode may be damaged during the process of etching the preliminary electrode layer arranged on the pad electrode

Method used

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Embodiment Construction

[0034] Hereinafter, a display device and a method of manufacturing the display device according to embodiments will be described in more detail with reference to the accompanying drawings. In the drawings, the same reference numerals refer to the same elements throughout, and repeated descriptions thereof may not be provided.

[0035] The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the example embodiments described herein.

[0036] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0037] It will be further understood that when used in this specification, the terms "comprising" and / or "comprising" specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude one or more other features, steps , operation, element, part and / or the presence or addition ...

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PUM

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Abstract

A display device includes a substrate including a display area and a pad area, a lower electrode, a light emitting layer, an upper electrode on the light emitting layer, and a pad electrode in the pad area. And a lower electrode in the display area, the lower electrode including a first electrode, a second electrode, and a third electrode. The first electrode has a first etch rate with respect to the etch process. The second electrode is on the first electrode. The second electrode has a second etch rate with respect to the etch process that is higher than the first etch rate. The third electrode is on the second electrode. The third electrode has a third etch rate with respect to the etch process that is lower than the second etch rate and higher than the first etch rate. The light emitting layer is on the lower electrode.

Description

technical field [0001] Embodiments generally relate to display devices and methods of manufacturing display devices. More particularly, embodiments of the present disclosure relate to a display device including pad electrodes and a method of manufacturing the display device including pad electrodes. Background technique [0002] Flat panel display devices are used as display devices for replacing cathode ray tube display devices due to their lightweight and thin characteristics. As representative examples of such flat panel display devices, there are liquid crystal display devices and organic light emitting diode display devices. [0003] The display device may include a display region in which pixel structures (eg, a lower electrode, a light emitting layer, and an upper electrode) are arranged, and a pad region in which a pad electrode is arranged. In this case, the pixel structure may emit light to display an image on the top surface of the display device, and the pad el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/12H10K50/805H10K59/38H10K59/124H10K59/126H10K59/131H10K71/621H10K50/818H10K50/824H10K59/1201H10K2102/3026H01L27/1225H10K50/81H10K71/00
Inventor 赵宰卨柳春基
Owner SAMSUNG DISPLAY CO LTD