Light valve element and control method thereof and display device

Abstract

The invention provides a light valve element and a control method thereof and a display device, and belongs to the technical field of display. The problems that an existing light valve element is complex in structure, difficult to prepare, large in power consumption and high in cost can be solved. The light valve element comprises a first substrate and a second substrate which are oppositely arranged in parallel, the space between the first substrate and the second substrate are divided into multiple chambers, and first electrodes and second electrodes are arranged in each chamber, are insulated from each other and are perpendicular to each other; each chamber is filled with an electrophoretic buffer solution containing charged reflection particles, and the reflection particles can be adsorbed to the surfaces of the first electrodes or the surfaces of the second electrodes. The light valve element is simple in working principle, easy to prepare, little in power consumption, low in cost and convenient and efficient to control.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a light valve element, a control method thereof, and a display device. Background technique [0002] Existing liquid crystal display devices are classified into transmission type, reflection type and transflective type according to different light sources used. Among them, the transmissive liquid crystal display device uses the backlight as the light source, and can display bright images in a dark environment; the reflective liquid crystal display device uses the front light source or the ambient light source as the light source, and the array substrate is made of metal or other materials with good reflection characteristics. The material layer of the transflective liquid crystal display device can be regarded as a transmissive liquid crystal display device and a reflective liquid crystal display device. In the combination of devices, a reflective area and a transmi...

AI Technical Summary

Problems solved by technology

[0004] The light transmitted by the transmissive LCD device only accounts for a small proportion of the light emitted by the backlight source, and the power consumption is high; the reflective LCD device must rely on external light sources, so it cannot display images in dark environments, and the application scenarios are very difficult. Restricted; although transflective liquid crystal display devices are used in a wide range of scenarios, the display effect is poor. In a bright environment, only the reflective area works, and the transmissive area will be idle; in a dark environment, only the transmissive area works, and the reflective area is idle.

As a result, the transflective liquid crystal display device cannot maximize the use of external light sources or backlight sources; as for the MEMS switch device, its technical difficulty is relatively large, the manufacturing process is complicated, and the cost is relatively high.

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