Circular polarizer and organic light-emitting display device thereof

Abstract

The present invention relates to a circular polarizer and an organic light-emitting display device using the circular polarizer; the circular polarizer includes a retardation film layer and a polarizing functional film layer stacked, wherein the polarizing functional film layer is far away from the One side of the phase difference film layer is provided with a quantum dot film layer, and the peak wavelength of the quantum dot film layer is 420nm-430nm. The quantum dot film layer is added to the circular polarizer of the present invention, which can convert the energy of the ultraviolet light, and can better cut off the ultraviolet light, especially the ultraviolet light when the OCR layer is cured can be converted into low-energy, long-wavelength The visible light improves the light resistance of the polarizing plate, reduces the damage to the organic film layer caused by ultraviolet light, and then delays the time and degree of color conversion of the panel, prolonging the service life of the display device product.

Description

technical field [0001] The invention relates to a circular polarizer and an organic light-emitting display device using the circular polarizer. Background technique [0002] Nowadays, OCA (Optical Clear Adhesive) is used in organic light-emitting displays, such as OLED and AM-OLED displays, for example, touch screens and display screens are bonded through OCA. However, compared with OCR (Optical Clear Resin), OCA has a great gap in terms of reworkability, particles, bubbles, equipment cost and ink step absorption, and OCR has better performance. [0003] However, the problem with OCR is that the bonding process requires UV irradiation (for example, 3000mJ / cm2). Since the circular polarizer attached to the display screen is not 100% cut-off for UV, part of the UV surplus may pass through the circular polarizer and The cover plate of the package is incident on the organic film layer of the OLED, resulting in changes in the characteristics of the organic film layer. At the sam...

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Problems solved by technology

However, compared with OCR (Optical Clear Resin), OCA has a great gap in terms of reworkability, particles, bubbles, equipment cost and ink step absorption, and OCR has better performance.

[0003] However, the problem with OCR is that the bonding process requires UV irradiation (for example, 3000mJ / cm2). Since the circular polarizer attached to the display screen is not 100% cut-off for UV, part of the UV surplus may pass through the circular polarizer and The cover plate of the package is incident on the organic film layer of the OLED, resulting in changes in the characteristics of the organic film layer. At the same time, the UV resistance of components such as the cover plate and circular polarizer will be affected, resulting in Mura or uneven display on the screen and reduced lifespan. and other issues

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