A display panel and its manufacturing method

Abstract

Embodiments of the present disclosure provide a display panel and a manufacturing method thereof. The display panel includes: a substrate; a thin film transistor, a patterned flat layer and a display device layer sequentially formed on the substrate, the display device layer includes a pixel defining layer defining a plurality of pixel regions, each pixel region is provided with a display device, each A display device includes a first electrode on one side close to the thin film transistor, an intermediate layer, and a second electrode on the opposite side of the thin film transistor; and a thin film encapsulation layer for encapsulating a plurality of display devices, wherein the thin film encapsulation A layer is disposed on the second electrode, and an inorganic barrier layer is disposed between the pixel defining layer and each display device, and the inorganic barrier layer is configured to prevent moisture from the pixel defining layer from intruding into the display devices. The display panel can achieve a high-efficiency water-oxygen barrier effect at the pixel level, taking into account good resolution; it can also maintain good flexibility while ensuring the water-oxygen barrier effect and good resolution.

Description

technical field [0001] The present disclosure relates to a display panel, and in particular, to a display panel and packaging and manufacturing methods thereof. Background technique [0002] With the rapid development of display technology, various thin and light flat display panels have been introduced. Device life is an important consideration index for the industrialization of display panels such as LCDs and organic light emitting diodes (OLEDs), which are adversely affected by moisture and oxygen. If water vapor and oxygen can be effectively blocked, the generation of black spots can be suppressed, thereby greatly extending the life of the display panel, which depends on the effective packaging of the device. [0003] In addition, flexible display panels have also been developed in recent years and have attracted increasing attention. [0004] Existing display panels may include a thin film encapsulation layer to block penetration of moisture, oxygen, etc. from the out...

AI Technical Summary

Problems solved by technology

However, usually the thin film encapsulation layer is integrally formed with the display panel, for example, the thin film encapsulation layer will encapsulate the buffer layer on the substrate, the thin film transistor, the patterned flat layer and multiple display devices such as LCD and OLED together ( Note: The technical term "display device" mentioned in this article refers to a display device corresponding to a single sub-pixel), this overall encapsulation will degrade the flexibility of the display panel, and the thin film encapsulation layer will change the shape of the display panel When it is damaged, in addition, the material of the film encapsulation layer is consumed more

[0005] In the prior art, the thin film encapsulation layer usually encapsulates the entire panel, including the substrate and the layer where the above-mentioned components are located, but usually does not cover a single display device and its corresponding buffer layer, thin film transistor and patterned flat layer. Independent encapsulation, because this will require a larger encapsulation space, degrade the resolution of the display panel, and increase the size of the display panel

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