Smectic state liquid crystal color display

Abstract

The invention discloses a smectic state liquid crystal color display, which comprises a first substrate layer and a second substrate layer, wherein a mixed layer is arranged between the first substrate layer and the second substrate layer and formed by mixing smectic state liquid crystal and an additive; a first conductive electrode layer is arranged on one side, facing the mixed layer, of the first substrate layer; a second conductive electrode layer is arranged on one side, facing the mixed layer, of the second substrate layer; and a color film layer is arranged on one of the sides of the first conductive electrode layer or the second conductive electrode layer. The smectic state liquid crystal color display can perform simultaneous all-color image display on two surfaces, and is wide in visual range, high in contrast, good in display effect, lightweight, environment-friendly, and radiationless.

Description

technical field [0001] The invention relates to a display device, in particular to a smectic liquid crystal display capable of displaying images on both sides in full color. Background technique [0002] Liquid crystal display is currently one of the most widely used and most promising flat panel display devices. [0003] Traditional liquid crystal displays are all backlight structure displays, which include multiple optical film layers such as polarizers, prism sheets, and color filters stacked in sequence. The polarizers and color filters are indispensable for realizing color display of images. An important part of. In practical applications, about 50% of the light energy will be lost when the light passes through the polarizer, and more than 40% of the light energy will be lost when it passes through the RGB color filter, which makes the light transmission rate of the display itself very low. Therefore, in order to achieve suitable brightness and contrast for the displa...

AI Technical Summary

Problems solved by technology

In practical applications, the reflectivity of the light will not exceed 30% after passing through the six substrate layers, which makes the reflectivity of the display device very low and cannot meet the display requirements.

In addition, even when the smectic liquid crystal in each layer structure is in a fully transparent state, the dichroic dye molecules still have a certain light absorption and present a certain color, which will further reduce the light transmittance, generally It will be much lower than 30%, and the display effect is not satisfactory

At the same time, the entire image of the display device is equivalent to being displayed on three-layer planes, and the reflection of light on different planes will produce parallax, which affects the display effect, and the liquid crystal molecules in the three-layer structure must be driven every time it is displayed. Therefore, the peripheral driving circuit of the display device is quite complicated, and the lightness of the entire display device is affected.

[0005] In addition, due to the limitation of the backlight source installed on the traditional liquid crystal display, and the limitation of the reflector installed on the existing smectic liquid crystal display device that can display images in color, they can only display images on one side

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