27 Jan
News

What is electronic paper,read this article enough !

　　With the development of time,the technical advantages of electronic paper have been recognized continuously,and more and more applications have been involved.But It may be difficult for some new users to understand at once.We list some questions that everyone is most concerned about to help you understand e-paper quickly.
　　Q1:What is e-paper?
　　Electronic paper is the electronic ink coating on a layer of plastic film,can be pasted on the thin film transistor(TFT/PET/FPC material)circuit,through the drive IC control,forming pixel graphics.
　　Q2:What is the display principle of electronic paper?
　　E-paper displays are based on e-ink technology,which uses tiny”microcapsules”on the surface of the screen to encapsulate negatively charged black particles and positively charged white particles.By changing the electric charge,the different colored particles are arranged in order to create a black-and-white visual effect.
　　Q3:Will the response time of the e-paper display be slow?
　　The response speed of electronic paper is about 50-100 milliseconds,which is suitable enough for everyday still pictures with slow switching frequency.Compared with traditional display screens,electronic paper has many advantages such as paper-like feeling,clearly visible in the sunlight,ultra-low power consumption and so on.
　　Q4:Why can the electronic paper display be super long standby?
　　In the absence of power supply,the screen image will not disappear and still display continuously.The electronic paper display screen uses bistable technology,power is consumed only when changing pictures,and does not consume power when the picture is still.Compared with other display products,the electronic paper display screen has excellent power saving performance.
　　Q5:Can the electronic paper display be read properly under sunlight?
　　The electronic paper display does not need backlight at all.The ambient light source is used to hit the electronic paper display screen and then refract the light to the eyes of us,which is the same as the visual principle of traditional paper or objects in life.Therefore,the brighter the ambient light source,the more clearly the electronic paper will be visible,And it has a wide viewing Angle of 170°.
　　Q6:Why do electronic paper screens protect your eyes?
　　Electronic paper displays can reflect ambient light,while other technology displays use strong backlights adjusted by liquid crystals.These light sources directly into the eyes can easily lead to dry eyes and visual fatigue,and blue light can cause eye lesions and other problems.Electronic paper display without backlight module can ensure eye health.
　　Q7:Can the electronic paper display is not damaged after bending?
　　The electronic paper display,which is as light as paper and can be rolled and folded at will,it is also very portable because it is made of flexible substrate material.Not only free bending to change the shape,also get rid of the traditional display shape constraint,stronger,not easy to break,greatly reduce the probability of damage to the end product.
　　Q8:How thin and light is e-paper?
　　Electronic paper has a clear advantage in terms of thickness and weight,due to its simple structure and the fact that the material is based on a soft plastic film,which is as light as a featherweight.For example,a flexible e-paper display module with a 13.3-inch plastic substrate weighs about the same as 15 sheets of A4 and is about the same thickness as seven sheets of A4.
　　Q9:What are the common e-paper applications in daily life?
　　Due to the unique advantages of electronic paper,it has been applied in every field of life.For example,some bus stop signs in Shanghai have been installed with electronic paper screens to display bus routes dynamically in real time,and rely on solar energy for charging.Electronic paper shelf label replaces the traditional paper price tag,can change the price information,reduce the use of paper more environmentally friendly;Electronic paper can be seen in many applications,such as electronic paper conference board,electronic paper badge label and smart wearable.
　　The development and application of electronic paper technology will bring about a revolution in the field of intelligent living,so it is necessary to have a certain understanding of it in advance.After reading this article,I believe you have a more comprehensive understanding of electronic paper technology!

28 Feb
News

DKE Exhibition Review-Embedded Word 2020

Embedded World 2020

2020.2.25-2.27

At the start of the New Year, an outbreak caught off guard quickly spread around the world, disrupting travel plans and moods. While doubts remained, DKE relied on the support of the company’s overseas teams to attend the world’s largest Embedded world expo in nuremberg, Germany, on Feb. 25

DKE-DKE E-paper Professional manufacturer

This exhibition, DKE exhibits include 1.49-13.3 inch e-paper display products and prism color e-paper products, and we, together with our partners, bring you e-paper application solutions in smart medical treatment, smart card, outdoor knowledge, smart bus, office and other scenarios

Intelligent Hospital Application

E-paper display screen has the characteristic of non-luminescence, which will not interfere with the rest of patients in the application of hospitals and care places. In medical institutions, information kanban, ward door plate, drug label and other applications that can be used for information exchange and message communication can improve the efficiency of workflow, reduce the risk of errors, and significantly reduce the workload of medical staff by digitizing information through electronic paper.

Smart Card Application

Segment code e-paper is used as the display area on the smart card to show the transaction information, one-time password, etc., even if the card is moderately bent will not break, low power consumption, support the battery-free solution, just use a little power when NFC transmission is enough to update the picture.

E-paper Signage Application

Low power consumption electronic paper display, provides a printed paper-like vision, the brighter the environment is clearer, in direct sunlight has excellent visibility. Because electronic paper does not self-luminous characteristics, do not make the light straight to the eye, increased security, but also meet the requirements of some local regulations.

Smart Office Application

E-paper display screen looks very similar to real paper, there is no backlight and it provides a reading interface similar to paper, which can make the document be directly digitized in the office use scenario, eliminating the consumption and waste of paper. Conference tables, badges, door plates, visitor CARDS and other office applications will have qualitative changes after the use of electronic paper display screen.

Smart bus Application

E-paper display has the kind of paper, according to characteristic of high contrast, provides excellent readability, on the bus, railway, applications, such as traffic lights can clearly show the real-time flight information, temporary transfer notice, etc, and can update the wireless remote control and lower power consumption, electronic paper board can use solar energy to operate, reduce the hardware cost.

Prism E-paper Display Application

E-paper large size Applications

Such as the printed visual effect/anti-glare/high contrast/central control, remote update, to electronic paper display display advertising kanban, restaurant menu, can show other display technology incomparable cultural texture, elegant atmosphere. Use remote communication to update text and picture content, saving manpower deployment and printing costs.

As a leading enterprise in the field of electronic paper display, DKE has been adhering to the principle of product as the core, innovation as the driving force, and service as the purpose. In the future, DKE Oriental branch will continue to devote itself to the research, development and promotion of flexible and colorful electronic paper, and create cost-effective electronic paper display technology solutions in the Internet of things (IOT) industry, so as to provide more application services for customers in the global electronic paper application market.

11 Jan
BLOG

Technology: Electrophoretic Paper Technology

 E-paper — the optical component of a film used in Electronic Paper Displays (EPD). Although futuristic-sounding, electronic ink is actually a straightforward fusion of chemistry, physics and electronics. It’s so much like paper, it utilizes the same pigments used in the printing industry today.
What is a Bistable Display?
        E Ink’s technology is commonly referred to as “bistable”. What does this mean? Bistable means that the image on an E Ink screen will be retained even when all power sources are removed. In practice, this means that the display is consuming power only when something is changing. For example, when reading on an eReader, power is only needed when turning to a new page but no power is consumed by the display while reading the page. This is most noticeable when an eReader goes into sleep mode yet there is still an image being displayed. By contrast, with a traditional LCD, the display is needs to be refreshed around 30X per second, regardless of the whether anything new is being displayed. Bistability significantly reduces the power consumption of displays using E Ink and is a key reason eReaders have such long battery life.
 Reflective Displays
        E Ink displays are also referred to as “reflective displays.” In an LCD, or “emissive display”, light from a backlight is projected through the display towards your eyes. In an E Ink display, no backlight is used; rather, ambient light from the environment is reflected from the surface of the display back to your eyes. As with any reflective surface, the more ambient light, the brighter the display looks. This attribute mimics traditional ink and paper, and users of E Ink displays have said that they do not have the same eye fatigue as with LCDs when reading for long periods of time. The backlight can also consume up to 40% of the power used in electronic product. Therefore, eliminating the need for a backlight significantly increases the battery life versus using a traditional LCD.
Two Pigment Ink System
        Electronic 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 clear fluid. When a positive or negative electric field is applied, corresponding particles move to the top of the microcapsule where they become visible to the viewer. This makes the surface appear white or black at that spot. 

Three Pigment Ink System
        Spectra is our 3-pigment ink offering, engineered specifically for Electronic Shelf Labels (ESL). It works similarly to dual pigment system, in that we apply a charge to our pigments, and to a top and bottom electrode to facilitate movement. However, Spectra is utilizing a microcup ink structure.

Spectra for ESL
        By using electronic shelf labels (ESL) with E Ink’s technology, retailers have the ability to change pricing strategies as needed in real time, allowing them to stay one step ahead of competitors while attracting consumers based on changing market conditions. Spectra allows retailers to elevate the impact of their ESLs, by adding color to logos and quickly directing consumers’ attention to important information, such as product sales and promotions.

11 Nov
BLOG

THREE COLOR EPD FROM DKE

DKE-Three color 

EPD with high contrast and uniformity,single pixel characters can be seen clearly,it can be used in barcode tags,price labels,and other special signs.This is a real application in Korea supermarket: 

We are pleasure to inform you a good news from customer

Our Three-color EPD were used in a new supermarket

The photos as below
 

DKE-Three color EPD Shelf Label

Better user experience

DKE-2.13inch three color EPD

Display performance

Cold Storage Area

Three color EPD in Cold Storage Area

Low temperature around 7℃

Display performance in Low temperature


DKE-Three color EPD
Standard size in mass production-1.54”，2.13”，2.9”

11 Mar
BLOG

Pervasive Displays Launch New DIY Kit w\ E-paper Screens

If you’ve been wanting to build your own wearable with an E-paper screen then I have some good news for you. A company in the United States and Pervasive Displays have just released a new development kit which combines 3 small E-ink screens with a controller board，
What with the decline of the ebook reader market over the past couple years, E-ink has been putting more and more effort into developing new markets for their screen tech. There are now at least a half-dozen   different kits for the DIY market which include an E-ink screen, and E-ink has also released encouraged new products in a wide variety of markets including shelf labels, smartphone cases, luggage tags, smart watches, and more.
         And now there’s a new one.
        The EPD Xplained Pro kit includes 1.54″, 2.13″, and 2.9″ E-ink screens from Pervasive Displays along with an extension board which is designed to work with the Atmel Studio IDE. This particular kit can’t do anything on its own, but from what I have read online and in the user manual I can tell that this kit is designed to work with other Atmel Xplained Pro development boards like the SAM4L Xplained Pro and the SAM D20 Xplained Pro.

11 Feb
News

E-Ink is focusing on alternative markets to power growth

      The e-reader revolution has started to diversify into different market segments in recent years. They initially started to branch into digital signage which was valued at $16.88 Billion in 2015 and is expected to reach $27.34 Billion by 2022. E-Ink is also focused on price tags and has retail partnerships with Whole Foods. This segment has accounted for 100% percent year over year growth for the past three years and is now accounts for significant growth.
       In the second quarter of 2016 E-ink has just posted an operating profit of $5,437,895 and this is the first time they have been profitable for quite awhile. In the first quarter of the year for example, they posted a $8.4 million dollar loss.
       If you break down their financials 35% of their revenue derives from e-tags used in luggage, digital signage and LCD panels.
       Over the course of the last few years E-ink has partnered with a European company called Visionect. They provide DIY kits for companies wanting to do things such as E-Ink Keyboards, Museums and bus signs.
       Speaking of Bus Signs, this is a hot new growth market for E-Ink. Information is dynamic and all of the information is updated via 3G. The signs are also readable in direct sunlight and they also incorporate back lite technology, so the screens are illuminated at night.
       There are a few in Australia right now, Boston and one near Waterloo Bridge in the United Kingdom. The UK is so happy with the technology that they plan is to introduce a further three in Parliament Square, Piccadilly Circus and Sloane Square in the next few months.
       The core focus on alternative markets is starting to stagnant e-paper development for the e-readers. At SID Display Week this past May, E-Ink announced a new Advanced Color ePaper (ACeP), a high quality, full color reflective display. For the first time ever, an electrophoretic display (EPD) can produce full color at every pixel without the use of a color filter array. It can display over 32,000 different colors and has a resolution of 1600 x 2500 pixels and 150 PPI.
       ACeP achieves a full color gamut, including all eight primary colors, using only colored pigments. The display utilizes a single layer of electrophoretic fluid, which is controlled using voltages compatible with commercial TFT backplanes. The fluid can be incorporated into either microcapsule or Microcup structures. The richness of the colors is achieved by having all the colored pigments in every picture element (pixel) rather than the side-by-side pixel colors achieved with a CFA. This eliminates the light attenuation, which can be quite significant. Like regular E Ink ePaper, ACeP maintains the ultra-low-power and paper-like readability under all lighting conditions.
       Sadly, this color e-paper will be temporarily unavailable. It is incompatible with Regal, the EPD controller that makes e-readers able to make page turns quick and eliminates ghosting.
That the e-reader industry is not innovating anymore. There simply isn’t any new tech that will offer new user experiences or dramatically increase performance. IMX 7 the new dual core processor from Freescale might improve things, but unless E-Ink releases a new waveform controller, performance might be negligible. This will prevent people from enjoying things like animated page turns, watching videos or playing casual games from companies like Rovio or All Slots Canadian Online Casino.

11 Feb
BLOG

About E-paper display (EPD) Technology

     Electrophoretic or electronic ink is the optical component of a film used in Electronic Paper Displays (EPD). Although it sounds, electronic ink is actually a really straightforward combination of chemistry, physics and electronics. It mimics the appearance of ordinary ink on paper.
       Electronic ink is made up of millions of tiny microcapsules. Each microcapsule has about the diameter of a human hair. Each microcapsule contains positively charged white particles and negatively charged black particles suspended in a clear fluid. When a positive or negative electric field is applied, corresponding particles move to the top of the microcapsule where they become visible to the viewer. This makes the surface appear white or black at that spot.
       3 color e-paper displays are originally engineered specifically for Electronic Shelf Labels (ESL). It works similarly to dual pigment system. From development, a charge is bought into pigments, and to a top and bottom electrode to facilitate movement. However, 3 color EPD is based on a micro-cup ink structure.

       DKE EPD:
       DKE are now providing monochromatic EPD as well as 3 color (Black, White and Red) EPD for clients. Besides providing a range of standard dot matrix EPDs, DKE also provides customization services, mostly on Segmented EPD.

11 Jan
BLOG, News

About E-paper display (EPD)

     About E-paper disply EPD: 
        E-Paper displays or electronic paper displays are display technologies that mimic the appearance of ordinary ink on paper. Unlike conventional backlit flat panel displays that emit light, electronic paper displays reflect light like paper. This may make them more comfortable to read, and provide a wider viewing angle than most light-emitting displays. The contrast ratio in electronic displays available as of 2008 approaches newspaper, and newly developed displays are slightly better. An ideal e-paper display can be read in direct sunlight without the image appearing to fade. Also, electronic paper technologies hold static text and images indefinitely without electricity. Flexible electronic paper uses plastic substrates and plastic electronics for the display backplane. 
       E-paper display technology mode is commonly referred to as “bi-stable” mode. What does this mean? Bi-stable means that the image on an e-paper display will be retained even when all power sources are removed. In practice, this means that the display consumes power only when refreshing. For example, when reading on an e-reader, there is no power consumption for the image to display. Power is only needed when turning from this page to a new page. This is most noticeable that when an e-reader goes into sleep mode yet there is still an image being displayed. By contrast, for a traditional LCD, the display is needed to be refreshing around 30X per second regardless of the whether anything new is being displayed. Bi-stability significantly reduces the power consumption of e-paper display and it is the key reason why e-readers have such long battery life. 
       E-paper displays are also referred to as “reflective displays.” In an LCD or “emissive display”, light from a backlight is projected through the display towards your eyes. For an E-paper display, no backlight is needed; rather, ambient light from the environment is reflected from the surface of the display to your eyes. For any reflective surface, the more ambient light, the brighter the display looks. This attribute mimics traditional ink and paper, and users of e-paper displays may be more comfortable when reading for long time. The backlight can also consume up to 40% of the power used in electronic product. Therefore, eliminating the need for a backlight significantly increases the battery life and increasing the experiencing of reading. 
       Applications of e-paper displays include electronic pricing labels (ESL) in retail shops, digital signage, timetables at bus stations, electronic billboards, mobile phone displays, electronic watch, electronic bracelet, electronic covers, electronic wallpaper and e-readers able to display digital versions of books, e-paper magazines and etc. 
       DKE EPD:
       DKE are now providing monochromatic EPD as well as 3 color (Black, White and Red) EPD for clients. Besides providing a range of standard dot matrix EPDs, DKE also provides customization services, mostly on Segmented EPD.