High-brightness high-contrast smectic-phase liquid crystal display screen

Abstract

The invention discloses a high-brightness high-contrast smectic-phase liquid crystal display screen which comprises an image display module and a backboard, wherein the image display module comprises a first substrate layer and second substrate layer, a mixed layer is formed between the first substrate layer and the second substrate layer, the mixed layer is formed by mixing smectic-phase liquid crystal, a conductive substance, an isolation substance and a brightening substance, or the mixed layer comprises a mixture which is composed of the smectic-phase liquid crystal, the conductive substance, the isolation substance and the brightening substance and is encapsulated in a polymer structure, a first conductive electrode layer is formed on one side of the first substrate layer facing to the mixed layer, a second conductive electrode layer is formed on one side of the second substrate layer facing to the mixed layer, a floating control electrode layer is formed on the first conductive electrode layer and / or the second conductive electrode layer, and the first conductive electrode layer, the second conductive electrode layer and the floating control electrode layer are connected with a driving control circuit. The display screen has high brightness, strong contrast, and large visual angle, and can be used as electronic paper and advertisement products.

Description

technical field [0001] The invention relates to a smectic phase liquid crystal display screen, in particular to a smectic phase liquid crystal display screen with high brightness and high contrast. Background technique [0002] Liquid crystal display is one of the most promising flat panel display devices at present. Traditional liquid crystal displays are passive displays, that is, transmissive displays, which can only be displayed under the condition of an external backlight, but the power consumption of the backlight is the liquid crystal itself. More than hundreds of times the power consumption, very energy-consuming. With the development of liquid crystal technology, various liquid crystal materials emerge in an endless stream, among which the reflective liquid crystal that does not require a backlight has an absolute advantage due to its low power consumption characteristics. The smectic liquid crystal display (that is, the smectic liquid crystal display) in the Chine...

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Problems solved by technology

[0003] However, the existing smectic liquid crystal display also has the following disadvantages: the incident light can be directly reflected between the two substrates, and the number of light reflections between the substrates is small, so the brightness and contrast of the display will be affected by the smectic phase. The limitation of the refractive index of liquid crystal molecules can easily cause defects in brightness and contrast (for example, liquid crystal molecules in a foggy and dark state cannot collect more light for scattering), that is to say, the brightness of the display screen is low, and the foggy The contrast between the dark state and the fully transparent state is low, and the clarity of the display screen is poor, so it cannot be widely used in daily reading and viewing

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