A kind of preparation method of oled display panel and oled display panel, display device

A display panel and display area technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as light leakage, color saturation reduction, and improvement of display image quality, so as to reduce production costs and achieve long-term Long service life, good barrier effect against water vapor and oxygen

Active Publication Date: 2021-03-26
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0003] In the production process of existing OLED display panels, colored organic photoresist materials are usually used as the pixel definition layer (PDL). However, these colored organic photoresist materials have high transmittance to visible light, which will lead to color saturation. The temperature drops, and light leakage occurs, which affects the improvement of the display picture quality

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  • A kind of preparation method of oled display panel and oled display panel, display device
  • A kind of preparation method of oled display panel and oled display panel, display device
  • A kind of preparation method of oled display panel and oled display panel, display device

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Embodiment Construction

[0039] The following descriptions are preferred implementations of the embodiments of the present invention. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principles of the embodiments of the present invention. These improvements And retouching are also regarded as the scope of protection of the embodiments of the present invention.

[0040] The terms "comprising" and "having" and any variations thereof appearing in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses. In addition, the terms "first", "second", and "third", etc. are used ...

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Abstract

An embodiment of the present invention provides a method for manufacturing an OLED display panel, including: providing a substrate, forming a TFT array layer, a first passivation layer, and a pixel definition layer on the substrate; At least one via hole and at least one pixel groove; each via hole is spaced apart from each pixel groove; continue to prepare and form at least one first electrode layer, and the first electrode layer covers the pixel groove at the same time The entire inner wall of the groove and the via hole; a photoresist layer is formed on the first electrode layer on the bottom of the pixel groove, and a second passivation layer is formed on the entire panel; the photoresist layer is peeled off to expose the The first electrode layer on the bottom of the pixel groove; an organic light-emitting layer and a second electrode layer are formed on the first electrode layer on the bottom of the pixel groove to obtain the OLED display panel. The preparation method has a simple process and can effectively reduce the phenomenon of lateral light leakage.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for preparing an OLED display panel, an OLED display panel, and a display device. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode), especially AMOLED (Active-matrix organic light emitting diode, active-matrix organic light-emitting diode) display technology has the advantages of wide color gamut, self-illumination, thinness and fast response speed. As the OLED display panel is more and more widely used, people's requirements for the display picture effect of the OLED display panel are also constantly increasing. [0003] In the production process of existing OLED display panels, colored organic photoresist materials are usually used as the pixel definition layer (PDL). However, these colored organic photoresist materials have high transmittance to visible light, which will lead to color saturation. The temperature drops, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/122H10K50/80H10K71/00
Inventor 周星宇
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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