View angle adjustable liquid crystal display

Abstract

The invention discloses an LCD device with an adjustable visual angle, comprising a backlight module, a first polarizing plate, a second polarizing plate, an LCD panel, a first adjustable visual angle device and a third polarizing plate, wherein, the first polarizing plate and the second polarizing plate are arranged on the backlight module and the two plates are equipped with a first light transmission axis and a second light transmission axis which are mutually vertical; the LCD panel is arranged between the first polarizing plate and the second polarizing plate; the first adjustable visual angle device which comprises a first homogeneous alignment liquid crystal layer is arranged between the LCD panel and the second polarizing plate; and the third polarizing plate with a third light transmission axis which is in parallel with the second light transmission axis is arranged between the LCD panel and the first adjustable visual angle device.

Description

Technical field [0001] The invention relates to a liquid crystal display device, and in particular to a liquid crystal display device with adjustable viewing angle. Background technique [0002] Liquid crystal displays have the advantages of high image quality, small size, light weight, low voltage drive, low power consumption and wide application range. Therefore, it is widely used in consumer electronics or computer products such as medium and small portable TVs, mobile phones, camcorders, notebook computers, desktop monitors, car monitors, and projection TVs, and has gradually replaced them Cathode Ray Tube (CRT) has become the mainstream of displays. In recent years, the liquid crystal display market has greatly increased, especially in the application of computers and notebooks. The requirements of large area, high resolution, wide viewing angle and fast response time have also become the key points for consumers to judge the pros and cons of liquid crystal displays. [0003...

AI Technical Summary

Problems solved by technology

[0003] Although wide viewing angles are increasingly important to the functionality of liquid crystal displays, in some operating situations, the wide viewing angle function of liquid crystal displays cannot take into account privacy to protect the privacy of users

For example, although a liquid crystal display with a wide viewing angle function can allow more people to share screen images, it cannot prevent someone from peeping some private screen content that is not pre-disclosed

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