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OLED display device and manufacturing method thereof

A display device, transparent and conductive technology, applied in the direction of static indicators, semiconductor/solid-state device manufacturing, instruments, etc., can solve the problems of process complexity, increase production cost, prolong process time, etc.

Active Publication Date: 2017-03-22
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires that the hole transport layers of the red, green and blue OLED devices need to use three different precision metal masks (FMM, Fine Metal Mask) and be prepared by three evaporation processes, thereby increasing the production cost and The process time is extended, and the product yield is reduced due to the complexity of the process

Method used

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  • OLED display device and manufacturing method thereof
  • OLED display device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0187] In the OLED display device of Example 1:

[0188] The red light OLED device comprises a first transparent conductive metal oxide layer 31, a first metal layer 32, a first PEDOT:PSS conductive film layer 33, a second transparent conductive Metal oxide layer 34, first hole injection layer 35, first hole transport layer 36, red light emitting layer 37, first electron transport layer 38, and first cathode 39;

[0189] The thickness of the first transparent conductive metal oxide layer 31 is 20nm; the thickness of the first metal layer 32 is 150nm; the thickness of the first PEDOT:PSS conductive film layer 33 is x R nm; the thickness of the second transparent conductive metal oxide layer 34 is 20nm; the material of the first hole injection layer 35 is HAT (CN) 6 , with a thickness of 5nm; the material of the first hole transport layer 36 is HTM081, with a thickness of 20nm; the red light-emitting layer 37 includes host material CBP and red phosphorescent dye Ir (DBQ) 2 (a...

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Abstract

The invention provides an OLED display device and a manufacturing method thereof. First, second and third PEDOT: PSS conductive film layers are respectively arranged in red, green and blue OLED devices, and the first, second and third PEDOT: PSS conductive film layers are arranged to have different thicknesses to make luminous efficiencies of the red, green and blue OLED devices be the best respectively; the first, second and third PEDOT: PSS conductive film layers are all prepared by adopting an ink-jet printing method, the production cost is low and the manufacturing process is simple; compared with the conventional OLED display device, first, second and third hole transfer layers which are respectively arranged in the red, green and blue OLED devices in the OLED display device have the same thickness, so that a common metal mask can be adopted to form the hole transfer layers in one evaporation process, and thus the three fine metal masks are saved, the production cost is reduced and the manufacturing time is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display device and a manufacturing method thereof. Background technique [0002] Organic Light-Emitting Diode (OLED) display, also known as organic electroluminescent display, is an emerging flat panel display device, due to its self-illumination, low driving voltage, high luminous efficiency, short response time, It has many advantages such as high definition and contrast, nearly 180° viewing angle, wide operating temperature range, flexible display and large-area full-color display. It is recognized by the industry as the display device with the most development potential. [0003] Compared with LCD display devices, OLED display devices have advantages such as self-illumination, simple structure and low cost, fast response speed, wide viewing angle, high color saturation, high contrast, light and thin and rollable, etc., more and more smart phones and wearable devices ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56H01L51/00
CPCH10K59/35H10K71/164H10K59/876H10K59/80518H10K59/122H10K85/1135H10K85/631H10K85/6572H10K85/342H10K50/11H10K2101/40H10K50/13H10K2101/10H10K2102/351G09G3/3241H10K50/814H10K50/816H10K50/818H10K50/824H10K50/852H10K59/352H10K59/353H10K59/1315H10K71/00
Inventor 汤金明
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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