Polarization plate, its preparation method and display apparatus using same

Abstract

The invention discloses a polarization plate, a manufacturing method thereof and a display unit using the polarization plate. The polarization plate is used for the display unit, comprising a brightening membrane, a diffused layer formed on one surface of the brightening membrane; and a polarization membrane formed on another surface of the brightening membrane. The brightening membrane, the diffused layer and the polarization membrane are combined to form a single polarization plate to greatly increase the brightness and contrast of the display unit. In addition two modules respectively for changing the optical path and light polarity are combined together to reduce the number of the optical membranes of the backlight module. Thus the display unit has less volume and weight and better optical character, compared with the prior display unit. The embodiment simplified the structure of the display unit and effectively increases the optical character.

Description

technical field [0001] The present invention relates to a display device with a polarizing plate, in particular to a polarizing plate, its manufacturing method and a display device using the polarizing plate. Background technique [0002] Flat display devices have been widely used in various electronic products. Liquid crystal display devices are widely favored because of power saving, low driving voltage and easy manufacture. Wherein, the liquid crystal display device provides light to the display panel through the backlight module to display images. [0003] In general, a backlight module usually has a light source and a plurality of optical films. The light source is used to provide light, and the optical film is used to improve the optical characteristics of the light. The optical film is, for example, a prism film, a light guide film, a reflection film, a brightness enhancement film, a diffusion film and the like. Optical films are used to reflect, guide, gather and...

AI Technical Summary

Problems solved by technology

However, adding optical films increases the difficulty of combining each optical film and also increases the assembly time of the backlight module

In addition, the thickness of each optical film is at least hundreds of μm, and more optical films also increase the thickness and weight of the display device

However, if the optical film is insufficient, the optical characteristics of the light will be reduced, for example, the brightness and contrast of the light will be reduced, which will affect the display quality of the display device.

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