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Electronic Paper Book Solution
1. Relevant definitions of e-book and electronic paper book solutions
1. Definition of electronic paper book
Electric paper book, its full name should be e-book reader. Since there is no standard definition or specific name, there are various names such as e-book, e-reader, and electronic paper book. Whether it is the content of e-books, reading equipment, or e-book reading software, or even online publishing, they are all called e-books. E-books In a broad sense, any handheld device that mainly reads e-books can be called an e-book. Such products have been sold on the market long ago, using dot-matrix LCD screens or TFT screens.
The preliminary identification of domestic academic circles and all walks of life is: "E-books represent digital publications that people read, so they are different from traditional publications that use paper as a carrier. E-books use computer technology to convert certain text, pictures, sounds, Information such as images is digitally recorded in equipment with optical, electrical, and magnetic media, and read, copied, and transmitted with the help of specific equipment.” It consists of three elements: (1) the content of E2book, which mainly Books made in a special format that can be distributed on wired or wireless networks, generally organized by a dedicated website. (2) The reader of electronic book, it comprises personal computer on the desktop, personal handheld digital device (PDA), special electronic equipment, as " Hanlin electronic book ". (3) Reading software for e-books, such as AcrobatReader of ADOB E Company, Glassbook of Glass2book Company, Microsoft Reader of Microsoft, S SReader of Superstar Company, etc.
2. The format of the e-book
The main formats of e-books are PDF, EXE, CHM, UMD, PD G, JAR, PDB, TXT, BRM, etc. There are more than ten kinds of formats, and many popular mobile devices currently support their reading formats. Common e-book formats for mobile terminals are UMD, JAR, and TXT.
3. Advantages of electronic paper books
Electronic paper book is a portable handheld electronic device designed for reading books. It has a large-screen LCD display and a built-in Internet chip. It can conveniently purchase and download digital books from the Internet, and it has a large-capacity memory. It can store a large amount of digital information, and can store the information of about 30 traditional books at a time. The specially designed liquid crystal display technology allows people to read books comfortably for a long time. The screen of an e-book is like a writing printed on glass, which supports the display of precise text, and can also be operated with special pen-touch devices (such as writing on the page, making marks, etc.). E-books are easy to operate, and unlike traditional computers, there is no need to wait for startup. When the power is turned on, it can enter the working state immediately. The page turning button of an e-book is also different from the scrolling method on a computer. Just press the "forward" or "backward" button to turn to another page of text or directly "Jump" to a page of text that you are interested in, and you can even perform some operations on the text on the screen while reading, which cannot be achieved by reading traditional books, and you can also read in a dark environment that cannot be achieved by traditional books. At present, domestic PDA products are abundant, which can be roughly divided into learning-based ones based on functions, including various English-Chinese translations, dictionaries, etc. , stock market quotes, sending and receiving emails, games and other functions, such as business communication, managers, celebrities, etc.; there is also a handheld computer, wireless Internet access, W INDOW S CE operating system.
In a narrow sense, only e-book readers that use electronic ink screens (electronic paper display technology) or similar technologies can be called e-books. This type of e-book is now called an e-paper book. The emergence of electronic paper books is not only because of the high purchase cost of paper books in the traditional sense, and the inconvenience of carrying them. Most people prefer handheld electronic reading devices, but also because computers, mobile phones, PSP, MP4, etc. For reading, but the LCD screen hurts the eyes, the electronic paper book with electronic paper display technology can make people read without hurting the eyes, and it is easy to carry, giving people a new reading experience.
2. Functional advantages of the electronic paper book solution
Compared with other handheld devices, the advantages of electronic paper books are particularly prominent. The first is that its screen does not flicker, and reading for a long time will not cause dry eyes and discomfort. Second, the long battery life. Because E2ink electronic paper is very power-saving, you can read thousands of pages of books on a single charge. Compared with traditional books, e-books undoubtedly save more space. Even dozens of encyclopedias can be carried with you to read at any time, even on business trips. Carry electronic paper books that are smaller in size, lighter in weight and larger in capacity than books, and are portable. An electronic paper book can store 1,500 pages of text content. If the memory chip of the electronic paper book reader is added, the storage capacity of the electronic paper book can be expanded to a maximum of 50,000-100,000 pages. Electronic paper books can also be presented in a multimedia manner, integrating simple functions such as music playback and recording, combined with audio and video technology, changing the traditional books that are only read on flat paper, and giving people more sensory experience, even entertainment effects .
Electronic paper books have the function of full-text search or indexing. When the "bookmark" of electronic paper books is inserted into a certain page, it can help readers search for certain words in the whole book and easily find the key points in the book. Electronic paper books can also be customized according to different reading platforms. Electronic paper books are affordable, and you can download books for free. With the rapid development of electronic publications, the networking of electronic publications has become a reality. The digitalization of electronic paper books makes it very convenient to modify and update the content. As a network covering the world, In2ternet has unique advantages in disseminating information and can be used at any time to achieve the purpose of instant updating of electronic paper books. Users of electronic paper books can build their own online library on the Internet to store the books they have purchased, and download them to the memory chip of the electronic paper book for reading when necessary. It only takes 3 minutes to download a 700-page book . Using electronic paper books, you don't need to buy thick paper books, avoid wasting paper, and can achieve environmental protection and birth control.
3. Electronic paper technology and working principle
Whether it is an "electronic paper book" or an "e-book", the first thing that comes to mind is a handheld reader with an E2ink electronic ink screen (electronic paper). The electronic paper (E-paper) developed by E2ink is actually a new generation of display device. It consists of electronic ink and two substrates: the first part is electronic ink, sometimes called "front plane". )”; the second is the combination of electronic equipment required to make electronic ink generate text and images, including the control part and the display part, which is called “backplane (backp lane)”, and the backplane is coated with countless tiny transparent particles Electronic ink, the particle diameter is only half the size of a human hair. Electronic paper is different from our common fiber paper. Electronic paper is a kind of "conductive polymer" material containing "microspheres". Its appearance and characteristics are the same as the paper we usually use. It is soft and can display data repeatedly. The carrier of electronic paper is a special thin film. By "coating" a layer of charged material (electronic ink) on the film, the background control is carried out according to the different content, and the purpose of content display is achieved through the corresponding display combination. . The surface of the electronic paper is a layer of transparent material, which is used as an electrode end; the bottom is another electrode of the electronic paper, and the microcapsules are sandwiched between these two electrodes. When working, as long as people give it a proper electric shock, hundreds of millions of particles can change colors, so as to continuously change the displayed patterns and characters according to people's settings. As long as the color of the dyes and micro-particles in the particles is adjusted, the electronic ink can display colors and patterns.
The core of electronic paper is an IC in a broad sense, and the entire reader can be regarded as a thin embedded remote control display board. Electronic ink is to seal many black and white particles with positive and negative charges in microcapsules. Due to the different applied electric fields, different aggregations will occur on the surface of the monitor, showing black or white effects. The most commercialized non-liquid crystal electronic paper technology is E2ink's electronic ink technology (electrophoretic electronic paper). E-paper has a higher display contrast than ordinary paper, and there is no problem in strong sunlight. It saves power, only uses power when refreshing the screen, and keeps displaying when power is off. It is ultra-thin, and the thinnest can be 0.1mm, which is similar to paper. Bend and fold, have good flexibility.
4. The core technology of electronic paper technology - electronic ink
Electronic ink is a new method and technology to innovate the display of information, and it is a comprehensive application of chemistry, physics and electronic technology. As one of the components of electronic paper technology, it is also the key to electronic paper technology. As early as 1975, Nicho las Sheridon, a researcher at Xerox PARC, proposed the concept of electronic paper. However, due to some decision-making problems, it was not until April 1996 that Bell Laboratories made electronic paper in the true sense, and E-ink Company in Cambridge, Massachusetts developed and entered the marketization stage. At present, the E-ink microcapsule electrophoretic display technology of Yuantai has the highest market share, the most mature and the most widely used.
E-ink is made up of millions of tiny microcapsules, about the diameter of a human hair. Each microcapsule contains positively charged white particles and negatively charged black particles suspended in a clean liquid. The top of the electronic ink film is a layer of transparent material, which is used as an electrode end; the bottom is another electrode of electronic ink, and the microcapsules are sandwiched between these two electrodes. When the microcapsule is affected by the negative electric field, the white particles are positively charged and move to the top of the microcapsule, and the corresponding position is displayed as white; the black particles are negatively charged and reach the bottom of the microcapsule under the action of the electric field force, and the user cannot see black. If the direction of action of the electric field is opposite, the display effect is also opposite, that is, black is displayed and white is hidden, as shown in Figure 1. It can be seen that as long as the direction of the electric field is changed, the display can be switched between black and white. The white part corresponds to the uninked part of the paper, while the black part corresponds to the printed graphic part on the paper. Like most traditional inks, e-ink and the lines that change its color can be printed on many surfaces, from curved plastic, mylar, paper to cloth. The difference from traditional paper is that electronic ink changes color when it is powered on, and can display changing images, just like a calculator or a mobile phone.
When people look at electronic ink with the naked eye, there is no difference between the same bottle of ordinary ink, but there are millions of tiny microcapsules suspended in the electronic ink liquid. Inside each capsule is a mixture of dye and pigment chips, and these tiny chips can be subjected to electrical charges. To see the microcapsules of e-ink, think of them as clear plastic water spheres. Dozens of table tennis balls are contained in the water polo, and what is filled in the water polo is not air but paint water. If we look at the water polo from the top, we can see many white ping pong balls suspended in the liquid, so the water polo looks white. Looking at the water polo from the bottom, all you see is paint water, so the water polo looks black. If you put thousands of water balloons in a container and move the ping pong balls between the top and bottom of the water polo, you can see the container change color. This is the basic principle of how e-ink works. These spheres are in fact microcapsules 100 microns wide. In 1 square inch, it contains about 100,000 microcapsules. If electronic ink is printed on a page, a sentence contains more than 30 microcapsules. The manufacture of microcapsules itself only involves relatively simple chemistry. After the microcapsules are made, they are called a colloidal material. This material is a small solid particle that assumes the physical properties of a liquid. The microcapsules are then suspended in a liquid "carrier" like conventional inks, yet it will stick to any surface that normal inks can use. And it can be printed with existing screen printing process. Printed microelectronics technology changes the color of ink particles and produces words and pictures.
Electronic ink has many advantages, including legibility, flexibility, easy and cheap fabrication and low power consumption. Compared with other display technologies, electronic ink has better reflectivity and contrast. They look like ink on paper, a medium that people feel comfortable reading and processing. Other display materials may feel light and difficult to read in bright light, including direct sunlight. E-ink-based displays, on the other hand, are really easy to see and read. Because electronic ink is soft, it can be used where the original display technology must be used where rigid, hard and flat surfaces cannot be used. E-ink can be applied to paper to produce flexible books and newspaper-like displays. It can also print onto cloth, or onto non-planar, odd-shaped surfaces like cell phones and other appliances.
E-ink can be used anywhere displays are used today, and more. The first generation of e-ink products will use large-area characters in retail stores, pharmacies, banks and the same stores that communicate with customers. After next year, displays based on e-ink will start appearing in electronic devices including cell phones, PDAs, pagers and digital clocks. Compared with flat panel displays, electronic ink has great advantages, good reading ability, more flexible design, low power consumption and low manufacturing price. E-ink can be printed onto a variety of surfaces, including paper and fabric. Due to its flexibility, electronic ink opens up new markets for curved surface displays. For example: more electronic equipment designs adopt handheld devices, and electronic ink can be printed on the device of user interface cheaply and conveniently. Think of a coffee pot that changes color to warn you when the coffee is colder than your preferred temperature, or a TV remote that turns red when the batteries are low. In the future, paper printed with electronic ink can typeset itself, so a single page can be used as an active display of large information. At present, Amazon's Kindle, OPPO's En2joy, and Hanvon's N-series electronic readers (electronic paper books) launched by Hanvon are all using E2ink electronic ink technology. The schematic diagram of electronic ink display is shown in Figure 2.
5. The development trend of electronic paper books
Electronic paper books do not turn pages and do not consume power, which is the key to the long battery life of electronic paper books. After a page turning is completed, maintaining the display content of the screen does not require power support. So you can read slowly without worrying about power issues. This is why the battery life of electronic paper books is not marked in hours.
The screen display effect of the electronic paper book is determined by the software. Most electronic paper books can display 8-level grayscale, some electronic paper books can display 16-level grayscale, and some can only display 4-level grayscale. Some pages leave traces of the previous page after turning them, while others don't at all. Some consumers may feel that this is a problem with the quality of the screen. In fact, this is determined by the software. If you compare the e-books of various manufacturers, you will find that the e-books of major manufacturers have better screen display effects, faster response, no traces, and more gray scales. This is not because big manufacturers have the strength to buy better screens, but because they have the strength to develop better e-book systems. This also shows that the price of e-books with slightly worse screen display is still high, because their cost is the same.
The advantages of convenience and diversified content of electronic paper books bring unlimited business opportunities for its development, which will force paper books to gradually withdraw from the stage of history. At present, there are many manufacturers of electronic paper books with a "weight" of no more than 300g and a thickness of no more than 1 cm. The maximum storage capacity supports 32GB. Only 284 grams. There are also fashion models such as Hanwang Electronic Paper Book N51 0, Hanlin V3 Electronic Paper Book, Patriot EB 6301, etc., all of which have beautiful shapes, large viewing angles, basically the same reading effect as real paper and no color difference, and have reached a low Power consumption, font size can be scaled freely, no flicker when reading for a long time, and does not hurt the eyes. Once charged, it can stand by for more than 15 days continuously when it is turned on. The emergence of electronic textbooks will also set off a major change in the education industry, making the "study burden reduction" that has been shouted for many years a complete reality. Children no longer carry heavy schoolbags to school, and carry this small electronic paper textbook in their pockets. But, because all the textbook content has been installed in this electronic textbook by the school at the beginning of the semester. The entry of electronic paper books into the library can effectively solve the pressure on the library's book collection capacity, so it is an inevitable trend to replace paper book publishing. In terms of distribution, there is no need to make specific products first, just wait for the subscriber's order, and issue as many as you need, and issue according to the quantity. In addition to actively digitizing paper books, each publishing house can develop its own characteristics according to its attributes, provide readers with a variety of choices, and implement a business model that seeks differences in the same way.
The above are the details of the electronic paper book solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have electronic function development needs for e-book readers, you can trust us. We have rich experience in customized development of electronic products. We can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. Our development capabilities cover PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development and other hardware and software design. It can also undertake the research and development of smart electronic products, household appliances scheme design, beauty equipment development, Internet of Things application development, smart home scheme design, TWS scheme development, Bluetooth audio development, children's toy scheme development, and electronic education product development.
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