Circular polaroid and AMOLED (active matrix organic light emitting diode) display device with same

Abstract

The invention discloses a circular polaroid. The circular polaroid includes a polarization layer, a first protective film, a hardened layer, a second protective film, a first pressure sensing adhesive layer, a phase difference film layer and a second pressure sensing adhesive layer, wherein the polarization layer has a first surface and a second surface opposite to the first surface, the first protective film and the hardened layer are sequentially formed on the first surface, and the second protective film, the first pressure sensing adhesive layer, the phase difference film layer and the second pressure sensing adhesive layer are sequentially formed on the second surface; and a protective layer for absorbing ultraviolet light is formed between the hardened layer and the first protective film. The circular polaroid provided by the invention is of a novel structure. According to the circular polaroid, the ceria-silicon dioxide thin film is additionally adopted to effectively realize high rejection of ultraviolet light, so that the energy of ultraviolet light arriving at an organic light emitting layer can be decreased, and therefore, the organic light emitting layer can be protected, and the defect of uneven brightness of a display device can be avoided, and the quality of products can be improved, and the service lives of the products can be prolonged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a circular polarizing plate and an AMOLED display device with the circular polarizing plate. Background technique [0002] Active Matrix Organic Light Emitting Diode (AMOLED) Compared with traditional liquid crystal display panels, AMOLED has many advantages as a new generation of display devices: fast response, high contrast, wide viewing angle, excellent display effect and Advantages such as low power consumption. It has broad application prospects in mobile phones, digital cameras, vehicle displays, notebook computers and military fields. [0003] In the application process of AMLOLED, TP (touch panel) and polarizing plate are not 100% cut-off to UV, and part of the remaining UV may enter the organic layer of OLED through POL and ENCAP, resulting in changes in the characteristics of the organic film layer, resulting in Various problems such as Mura (mura refers to the pheno...

AI Technical Summary

Problems solved by technology

[0005] 1. The PVA (polarizing layer) layer is an important component for converting natural light into linear polarized light. The polarized photons (I ions) inside are stretched and formed. TAC material is an important component for protecting PVA. The doping of ultraviolet absorbing materials will affect the TAC. Protective function, reduce the degree of polarization and the life of the linear polarizer

[0006] 2. The material absorbs deep blue light and ultraviolet light, and the absorption is not sufficient. There is still some high-energy ultraviolet excess that invades the organic layer and affects the light emission of sub-pixels.

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