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SMARTO| Focuses on carbon neutral solutions for logistics packaging
Industry Prospects|Smart City—Electronic Paper Drives Digital Transformation of Aviation Industry
Industry Prospects|Smart City—Electronic Paper Drives Digital Transformation of Aviation Industry
Technology application
Technology application
The e-paper based e-book reader is a very lightweight tablet reader, equivalent to a thin paperback book, which can store about 200 e-books. It has the characteristics of light weight, large capacity, long battery life, large screen, etc. It is a new choice for office paperless. Some e-book readers have the ability to adjust font size, and can display black and white images in JPEG and GIF formats, Word files, and RSS news feeds.
E-paper displays achieve visual effects by reflecting ambient light, so they look more like regular paper. This type of display is very energy efficient, because once the display is turned on, it no longer needs current to maintain the display of text, and only consumes energy when turning pages.
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LCD
LCD
LCD
2021-11-24
Cholesteric Liquid Crystal Display is an unconventional display technology that retains the image on the display even when power is removed from the control panel. Its image is comparable to reading on paper, features include high contrast, wide viewing angles, high reflectivity and high readability in sunlight, in addition to the product's bistable characteristics and low power consumption.
Cholesterol liquid crystals use materials that are similar in structure to cholesterol molecules, hence the name. In addition to pure cholesteric liquid crystals, there are also nematic liquid crystals added with optical rotators, or nematic liquid crystals added with cholesteric liquid crystal molecules. The liquid crystals added with materials have different wavelengths and optoelectronic properties. Nematic liquid crystal after adding the optical active agent, the liquid crystal material will produce a helical structure. Placing cholesteric liquid crystals on two horizontal substrates, in the absence of electric field alignment, the cholesteric liquid crystals tend to be arranged in a plane helical arrangement, and can reflect light with colors under the condition of reflection conforming to a specific light wavelength, or is in a transparent state. Cholesteric liquid crystals can achieve a bistable effect in two ways: one is Surface Stabilized Cholesteric Texture (SSCT); the other is polymer stabilized cholesteric Texture (PSCT), both of which are One of the very popular cholesteric liquid crystal display technologies.
The working principle of cholesteric liquid crystal display is: on the component, it includes upper and lower substrates, spacers and black absorbing materials like general passively driven liquid crystals. The upper and lower substrates can be made of glass or plastic substrates, except for passive driving electrodes and alignment layers In addition, in order to achieve a good reflection effect, the size of the spacer is about 6-8 times of the pitch.
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Technical advantages
Technical advantages
What is electrophoresis technology? Literally means "swimming at a certain voltage", and the display works by moving electric ions immersed in a transparent or colored liquid, that is, by flipping or flowing fine particles to brighten or darken pixels , and can be fabricated on glass, metal or plastic substrates. The specific technique is that titanium dioxide particles with a diameter of about 1mm are dispersed in hydrocarbon oil, black dye, surfactant and charge control agent to charge the particles are also added to the hydrocarbon oil; this mixture is placed in two blocks Between parallel conductive plates with a distance of 10-100 mm, when a voltage is applied to the two conductive plates, these particles will migrate from the thin plate where they are to the oppositely charged thin plate in an electrophoretic manner. When the particles are on the front (display side) of the display, the display is white because light is scattered back to the reader by the titanium dioxide particles; when the particles are on the back of the display, the display is black because the color dyes absorb the incoming light . An image can be formed by dividing the electrodes on the back into tiny picture elements (pixels) by applying the appropriate voltage to each area of ​​the display to create a pattern of reflective and absorbing regions.
Electrophoresis has several advantages. One is low energy consumption. Thanks to the bistability, the image remains on the display for days or months after the power is turned off. Second, the displays produced by electrophoretic technology are reflective, so they have good sunlight readability, and can also be combined with front or side light for use in dark environments. The third is the potential for low production costs, as the technology does not require strict packaging and is feasible with solution processing techniques such as printing. Fourth, electrophoretic displays feature flexible form factors, allowing them to be fabricated on plastic, metal or glass surfaces, so it is the best choice for flexible display technology.
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Dalian Diamo Electronic Technology Co., Ltd.   

辽ICP备08000578号  
Website construction:www.300.cn
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