Circular polaroid and organic light-emitting display device

Abstract

The invention relates to a circular polaroid and an organic light-emitting display device using the same. The circular polaroid comprises a phase difference film layer and a polarization functional film layer that are laminated successively. A quantum dot film layer is arranged at one side, far away from the phase difference film layer, of the polarization functional film layer, wherein the peak wavelength of the quantum dot film layer is 420nm to 430nm. According to the circular Polaroid, with the quantum dot film layer, energy conversion can be carried out on ultraviolet radiation light, so that ultraviolet light can be cut off well; and especially, ultraviolet radiation light can be converted into visible light with low energy and long wavelength during optical clear resin (OCR) layer solidification, so that the light-resistant performance of the polarizer plate can be improved and the damage to the organic film layer by the ultraviolet radiation light can be reduced. Therefore, the panel color conversion time and degree can be increased and thus the service life of the display device product can be prolonged.

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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