Display panel and polaroid

Abstract

The invention provides a display panel. The display panel is provided with a first polarized layer, a second polarized layer and a half-wave plate arranged between the first polarized layer and the second polarized layer, the half-wave plate can deflect the polarization direction of visible light of which the wave length is larger than a specific wave length by 90 degrees, the deflection angle of the polarization direction of the visible light of which the wave length is smaller than the specific wave length is smaller than 90 degrees, and the specific wave length is the blue or purple visible light wave length. For example, the half-wave plate can effectively change the polarization direction of the light with the wave band ranging from 430 nm to 780 nm and inefficiently change the polarization direction of the light with a low wave band ranging from 380 nm to 430 nm, the second polarized layer can effectively block permeation of the light with the low wave band ranging from 380 nm to 430 nm, and a harmful blue light wave band is successfully blocked. The display panel has the advantages of being low in blue light, healthy and capable of protecting eyes.

Description

technical field [0001] The invention relates to a display technology, in particular to a display panel and a polarizer. Background technique [0002] With the continuous development of display technology, people have higher and higher requirements for displays. In addition to the picture quality and performance of the display, people are also paying more and more attention to the harm of display products to human eyes. As far as the blue light emitted by the display screen is concerned, its energy is second only to ultraviolet rays. It can easily penetrate the eyeball and reach the retina, causing damage to the macula, which dominates vision and color recognition. Therefore, consumers' demand for display products with eye protection function is also increasing. [0003] At present, the existing display products with eye protection function are improved from their backlight sources, using long-wavelength blue light as the light source, which has low energy and dim brightnes...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing display products with eye protection function are improved from their backlight sources, using long-wavelength blue light as the light source, which has low energy and dim brightness, and it is difficult to meet user needs; the existing display products with eye protection function Some display products also adopt the method of sticking anti-blue light protective film outside the screen to filter out harmful parts below 400 nanometers (nm), but cannot completely filter out blue light (that is, low-band blue and purple visible light), otherwise blue light cannot be displayed. color (or purple), and the use of filter mode will lead to a decrease in luminance, which will have a certain impact on the display luminance

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