Liquid crystal display device and driving method thereof

Abstract

The invention discloses a liquid crystal display device and a driving method thereof. The liquid crystal display device comprises a display panel and a first light modulator. The first light modulatoris arranged on one side of the display panel. The first light modulator is used for receiving light and comprises a first electrode, a second electrode and a first liquid crystal layer. The first liquid crystal layer is clamped between the first electrode and the second electrode, the first electrode is closer to a light emitting side of the liquid crystal display device than the second electrode, and the second electrode is divided into at least two sub-electrodes. According to the liquid crystal display device and the driving method thereof provided by the invention, wide-viewing-angle andnarrow-viewing-angle display can be realized by arranging the first light modulator, a penetration rate and a contrast ratio of front view are not influenced in a narrow-viewing-angle mode, and a display effect is good; moreover, the second electrode is divided into the plurality of sub-electrodes so that different voltages can be applied to the sub-electrodes, areas corresponding to the differentsub-electrodes are displayed in different display modes, and wide and narrow viewing angle partition display of the liquid crystal display device is realized.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display device and a driving method thereof. Background technique [0002] Liquid crystal display devices have the advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation, and relatively low manufacturing costs, and occupy a dominant position in the field of flat panel displays. [0003] With the continuous advancement of liquid crystal display technology, the viewing angle of the display has been expanded from about 120° to more than 160°. While enjoying the visual experience brought by the large viewing angle, people also hope to effectively protect commercial secrets and personal privacy. In order to avoid commercial loss or embarrassment caused by leakage of screen information. Therefore, in addition to the wide viewing angle, the display device is also required to have the function...

AI Technical Summary

Problems solved by technology

[0004] In order to protect commercial secrets and personal privacy, shutter technology can be used, but this technology cannot be switched to wide viewing angle mode, and the brightness loss is serious. At the same time, the manufacturing cost is high, and it is difficult to meet the use requirements.

Moreover, the current switching between wide and narrow viewing angles generally only allows the display modes of all areas of the entire liquid crystal display device to be the same, and cannot achieve partitioned display.

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