OLED display panel

Abstract

The invention provides an OLED display panel. A through hole and a water blocking structure used for preventing the water vapor from entering the through hole are formed in the display area of the OLED display panel. Compared with an existing OLED display panel, a water-blocking retaining wall is arranged at the cutting position of the OLED display panel. A light-emitting device at the cutting position is isolated from the water vapor of the light-emitting device in the display area. Furthermore, the light-emitting device in the panel is protected from being corroded by the water vapor, so that the display service life of the OLED display panel is prolonged. In the prior art, according to the existing in-screen special-shaped cutting technology, after the OLED display panel is cut off, nopackaging layer is arranged at the cut position for protection. In this way, the light emitting device is exposed and then the water vapor intrudes into the OLED display panel through the cutting position. The light emitting device is damaged, and then the display quality of the whole panel is affected. The OLED display panel is provided to solve the above problem in the prior art.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel. Background technique [0002] Flexible organic light-emitting diode (OLED) is a variable and bendable display device. Compared with the traditional rigid display, it has self-illumination, wide viewing angle, high contrast, low power consumption, and high response. advantages such as speed. OLED luminescent material is an organic material that is extremely sensitive to water and oxygen. Usually, flexible OLED adopts thin film encapsulation (TFE) technology. (Water Vapor Transmission Permeance, WVTR) can be reduced to about 10-6g / m2·day level, which ensures the normal operation of OLED luminescent materials. [0003] When preparing an in-screen O-cut (O-cut) display, it is necessary to dig a hole on the screen and place a camera. In order to ensure the clarity of the camera, an electroluminescent layer (Electro Luminscent, EL) +The film layer of the TFE ...

AI Technical Summary

Problems solved by technology

[0003] When preparing an in-screen O-cut (O-cut) display, it is necessary to dig a hole on the screen and place a camera. In order to ensure the clarity of the camera, an electroluminescent layer (Electro Luminscent, EL) +The film layer of the TFE process section is hollowed out. This process will cause the sides of the EL and TFE layers to be directly exposed to the outside, and water and oxygen will invade from the sides of the EL and TFE layers, which will seriously affect the service life of the light-emitting device.

[0004] To sum up, in the existing special-shaped cutting technology in the screen, after the OLED display panel is cut, there is no encapsulation layer protection at the cutting place, thereby exposing the light-emitting device, and water vapor invades the OLED panel from the cutting place, causing damage to the light-emitting device, which in turn affects the entire panel display quality of

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