Evaluation of the revolutionary Hanwang electronic paper book D2 1

IT 168 evaluation book, the word ripples in the long river of history, which represents knowledge, culture and communication. A long time ago, probably in the Neolithic Age, there were no words at that time, and many things, large and small, were passed down from mouth to mouth. Over time, things are always forgotten. In the past, people tied knots with ropes, and big knots represented great events. Summary represents small things, which is what we are talking about today? Take notes? , not exactly? Take notes? It should be regarded as the earliest book. Later, Oracle Bone Inscriptions was invented by human beings, and it was carved on tortoise shells and animal bones with a knife for sacrifice and divination, indicating that books have become a kind of physical objects and can achieve certain communication purposes.

The earliest in history Books? -Oracle Bone Inscriptions.

From the Warring States to the Wei and Jin Dynasties, the characters have greatly evolved. Although characters are still mastered by some people in the upper class, bamboo slips appeared in order to achieve the purpose of communication more effectively. /kloc-after the invention of papermaking in 0/05, people wrote words on paper and bound them into volumes, which is the embryonic form of books we see now.

Learn to be rich-bamboo slips.

Time never stops, the world is changing, technology is developing, and so are books. After many changes, books have finally become our common paper books. In our parents' time, books were their only pastime, and reading has become their habit.

Books that continue to this day-paper books.

Nowadays, with the accelerated pace of life, people's leisure and entertainment methods are gradually fast-food, and many modern young people can calm down and savor their works. Reading is no longer people's usual habit, but relatively heterogeneous. Even when reading, people rely more on the internet and mobile phones to read in the true sense. This information intake is large, but not deep enough, just like wolfing down fast food instead of chewing it carefully.

The choice of trendy young people-mobile phone e-books.

Of course, the reason for this embarrassing situation is not that people are subjectively unwilling to read, but that they have no leisure time and energy to travel between libraries and bookstores, and there is not enough space to store large books. Of course, the high price of hardcover books is also one of the reasons, so some people download e-books to computers or mobile phones to read, but the screen of mobile phones and even computer screens is far less comfortable than that of traditional books. The printing resolution of traditional books is generally 200-400DPI, while the display is generally only 72DPI, while the mobile phone is lower, and the backlight stimulates the eyes, which is not suitable for long-term reading at all.

Notebooks, netbooks, PDA and MID are full of people's lives, and many people gradually forget the existence of paper.

All this changed with the appearance of electronic ink! 1997 ﹙MIT Media Lab﹚ probably felt guilty for inventing multimedia concepts to attract too many people from traditional books to computer screens, so it once again brought technology that changed the world and developed electronic ink technology, trying to make modern people return to traditional reading more. Joseph Jacobson, a post-MIT media lab professor, established E Ink Company to conduct commercial operation on the industrialization of electronic ink technology.

The place that changed history again--the media laboratory of massachusetts institute of technology.

The electronic ink principle of electronic paper book is different from ordinary LCD or LED display. Its main component is millions of ﹙microcapsules﹚, which are about the diameter of human hair.

An avatar (avatar), each microcapsule contains positively charged white particles and negatively charged black particles, both of which are suspended in a clear liquid. When the negative electric field is set, the white particles move to the top of the microcapsule, and the reader can see the white particles, and the surface here looks white. At the same time, the opposite electric field pulls the black particles to the bottom of the microcapsule and the black particles are hidden. This process is the opposite, black particles appear at the top of the capsule, making the surface area appear black.

Because the color control of electronic ink is microscopic to particle level, it is far more delicate than the traditional display mode of pixel level. At the same time, electronic ink only needs to consume electric energy to move particles when the picture changes, and the energy consumption in the usual static state is almost negligible, so the energy consumption is extremely low.

On the other hand, the surface of the material is paper-like, which does not emit light itself, does not stimulate the user's vision, and at the same time, the visibility will not be greatly affected in places with strong light. These characteristics make electronic ink similar to traditional paper books in meaning.

Electronic ink technology makes e-books have the impression of traditional paper books, but it also has the advantages of large capacity and easy storage and carrying brought by electronic technology. Users can conveniently store thousands of books through the built-in memory card, and can also purchase and download them online more conveniently, so they don't have to rush to the bookstore or expect the delivery of express delivery.

The prospect of electronic ink in China also has its own advantages. Due to the imperfection of copyright laws and systems in China, users can basically obtain pirated books from the Internet without considering the later economic and legal costs. The D2 1 launched by Hanwang this time is aimed at the student market. Some dictionaries and reading marks are practical for students and are very suitable for students and friends.

We won't describe the appearance of this Hanwang D2 1 evaluation any more. Friends who want to know can click to enter "China Amazon Kindle Hanwang D2 1 Unpacking Picture Appreciation".

》

This Hanwang D2 1 adopts the mainstream 5-inch electronic paper book display screen, with a nominal 800? The resolution is 600, which supports 8-step gray scale, the ratio is 4: 3, and the external dimensions are:173x17x10.3mm, or about 195g, which is only equivalent to the weight of a notebook, so it is very convenient to carry.

For text reading, although manufacturers will not encourage users to obtain pirated books, in order to make them more acceptable, their products still allow users to read TXT, PDF, jpg pictures and other formats without copyright encryption. Let's take a look at Hanwang D2 1' s support for plain text.

Hanwang D2 1 can directly open plain text formats such as TXT, and users can adjust the font size at three levels according to their own eyesight and reading habits. Plain text pages turn pages quickly, with almost no delay.

We compared the text display quality of electronic paper books and monitors. We use Adobe Acrobat Pro 100% to display the text on a 22-inch LCD screen with a resolution of 1680x 1050, and then compare the font displayed in D2 1 with the camera macro. Although Adobe Acrobat Pro has done anti-aliasing processing in font rendering, it is still obvious in font details.

For text documents, users can also use a stylus to check reading points or add reading notes, which is very useful for students' learning.

In addition, Hanwang D2 1 also has the functions of real-time translation, bilingual reading, dictionary, etc., and integrates many authoritative dictionaries and dictionaries such as Longman, Xinhua, Ancient Chinese and Encyclopedia Britannica, which is very suitable for students and friends who are learning foreign languages and Chinese.

In addition, the text-to-speech reading function provided by Hanwang D2 1 is more like Kindle, which is more suitable for China's national conditions than Kindle, and supports not only English reading but also Chinese reading. Users can also choose male and female voices according to their own preferences.

PDF reading experience

As an electronic document standard promoted by Adobe, PDF has been widely recognized and widely used in various books, especially technical documents. Therefore, the practicality of electronic paper books largely depends on the support of PDF.

Hanwang D2 1 supports PDF documents well, but the resolution of D2 1 600x800 is usually not enough to display high-resolution PDF documents, and users need to scroll a single page. D2 1 Although there is no joystick like kindle 2 and DX, you can turn pages directly by sliding the stylus gesture, which is relatively more convenient than the joystick of Kindle 2.

Because PDF contains a lot of vector information and images, the loading speed of D2 1 is slightly slower than that of plain text, but the speed is also within the acceptable range. In addition, D2 1 currently does not support PDF documents with passwords or directory links within PDF documents. I hope Hanwang can correct this problem or make improvements in subsequent upgrades.

Because the EPD gray level of D2 1 is 8, it does not perform well in the transition area of the photo. Later, we used the test chart to deduce the gray scale test of D2 1 and made a more detailed test.

Because only 8 gray levels are supported, two similar gray levels are mixed for the transition color that is not in the middle, so the middle color is not a solid color, but a spot. Moreover, due to the characteristics of EPD itself, the color is changed by changing the electrodes to move the black and white electrons.

Sometimes there will be incomplete actions, and the picture will have a slight residue of the previous picture (especially the bottom area of the above picture), which needs to be corrected by refreshing the whole screen in reverse color. Although D2 1 has been designed with this problem in mind, it will automatically refresh when browsing and turning pages, but when moving the picture viewing area, users still need to use the refresh button to refresh the whole screen in reverse color from time to time to solve this problem.

However, D2 1 electronic paper books are very suitable for reading comics. Compared with traditional ink, EPD is more similar to a cartoonist in touch and very similar in size. It is believed that reading comics on the subway with a D2 1 will inevitably become a new fashion for electric riders.

Many people always like to listen to some music while reading. Hanwang D2 1 has added music playing function, which undoubtedly meets the reading needs of this group of people. Besides reading books, you can also play music files in MP3, WAV and other formats, which can be played through built-in speakers or headphones, and can be played in the background in a multi-tasking environment. However, the current music player does not support album cover display and album management.

Evaluation summary

Hanwang D2 1 Electronic paper book for students is a product that focuses on teaching and learning in content construction. A large number of learning tools are pre-installed, and words can be translated and new management words can be added at any time, supporting real-life pronunciation and bilingual reading, which can effectively improve students' Chinese and English level. Because the screen of Hanwang D2 1 has no backlight, students are not prone to visual fatigue after reading for a long time, which effectively prevents myopia. However, due to insufficient backlight, it is difficult to read in a poor light environment. Besides, tailor-made for students? Personal tutor? Hanwang D2 1 allows users to read TXT, PDF, jpg images and other formats without copyright encryption, which expands the reading sources to some extent.

Hanwang D2 1 adopts electronic ink technology. Due to its own characteristics, the phenomenon of incomplete black-and-white electronic movement will occur during continuous handwriting input in a short time, and a trace of a pen will remain on the screen, which needs to be refreshed several times to remove. In addition, its refresh time is slightly longer, and an instant black screen will appear when the refresh jumps to the next page.

Compared with Kindle 2 and DX, you can only buy genuine books, but there is something wrong with Chinese support, which is of little significance to most China users; Sony PRS-505 is not recommended because of its weak function. However, due to the lack of excellent and cheap solutions such as MTK, the vast number of China cottage products lack advantages in cost, so they can only use the lower-end E-INK technology, which makes the electronic paper book poor in effect and appearance technology. Therefore, Hanwang's electronic paper book products are undoubtedly the most suitable products for users in China.