Liquid crystal display capable of adjusting visual angle and method of adjusting visual angle thereof

Abstract

It is a display device with adjustable vision angle, which comprises aphototropism elements, first display panel, second display panel and data driver. The first display panel is set above the aphototropism elements and comprises the first LCD layer and the first picture element electrode relative to each picture element. The second display panel is set above the aphototropism elements and comprises the second LCD layer and the second picture element electrode relative to each picture element. The data driver is coupled with the first and second display panels to drive the first and second picture element electrodes.

Description

technical field [0001] The present invention relates to a liquid crystal display with an adjustable viewing angle and a method for adjusting the viewing angle, and particularly relates to a liquid crystal display with an adjustable viewing angle by driving two liquid crystal layers and a method for adjusting the viewing angle. Background technique [0002] With the advancement of technology, consumers have more opportunities to use mobile products with displays in public areas, such as mobile phones, notebook computers, etc., but if consumers want to keep their privacy when using them in public areas, then they A monitor with adjustable viewing angle will be required. At present, there are the following three common methods for controlling the viewing angle of a liquid crystal display. [0003] figure 1 It is a schematic diagram of adjusting the viewing angle of a liquid crystal display by using blinds to absorb materials in the prior art. Please refer to figure 1 , add ...

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Problems solved by technology

[0004] However, the disadvantage of this viewing angle control method is that: the louvered absorbing structure 110 must be added outside the display when in use, causing inconvenience in use; as part of the light L is absorbed by the louvered absorbing structure 110, the display brightness will decrease. It has dropped by more than half; and the adjustment of its viewing angle is to increase or decrease at the same time, which cannot meet the various needs of users for viewing angle switching, such as providing users with only front view and left side view.

[0006] However, the disadvantage of this viewing angle control method is that: when the light scattering structure 210 is switched to the voltage-on state, the backlight Lb will be partially reflected when passing through the light scattering structure 210, causing the brightness of the liquid crystal panel 200 to decrease; and as above As mentioned in an example, this viewing angle control method can only provide two modes of narrow viewing angle and wide viewing angle, and cannot be adjusted according to the viewing angle required by the user, thus limiting the variety of options for viewing angle adjustment

[0008] However, as described in the above three examples, the current LCD structures with adjustable viewing angles often have the disadvantages of decreased brightness and reduced contrast when switching viewing angles, and cannot switch the viewing angle to a viewing angle other than the one required by the user. , so neither is a true viewing angle adjustment method

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