Electronic paper

Last updated

Electronic paper and e-paper, also sometimes electronic ink, electrophoretic displays or e-ink, are display devices that mimic the appearance of ordinary ink on paper. [1] 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 (2008) developed displays are slightly better. [2] An ideal e-paper display can be read in direct sunlight without the image appearing to fade.

Contents

Many electronic paper technologies hold static text and images indefinitely without electricity. Flexible electronic paper uses plastic substrates and plastic electronics for the display backplane. Applications of electronic visual displays include electronic shelf labels and digital signage, [3] time tables at bus stations, electronic billboards, [4] smartphone displays, and e-readers able to display digital versions of books and magazines.

Technologies

Gyricon

Electronic paper was first developed in the 1970s by Nick Sheridon at Xerox's Palo Alto Research Center. [5] The first electronic paper, called Gyricon, consisted of polyethylene spheres between 75 and 106 micrometers across. Each sphere is a janus particle composed of negatively charged black plastic on one side and positively charged white plastic on the other (each bead is thus a dipole). [6] The spheres are embedded in a transparent silicone sheet, with each sphere suspended in a bubble of oil so that it can rotate freely. The polarity of the voltage applied to each pair of electrodes then determines whether the white or black side is face-up, thus giving the pixel a white or black appearance. [7] At the FPD 2008 exhibition, Japanese company Soken demonstrated a wall with electronic wall-paper using this technology. [8] In 2007, the Estonian company Visitret Displays was developing this kind of display using polyvinylidene fluoride (PVDF) as the material for the spheres, dramatically improving the video speed and decreasing the control voltage needed. [9]

Electrophoretic

Appearance of pixels E-ink.svg
Appearance of pixels

In the simplest implementation of an electrophoretic display, titanium dioxide (titania) particles approximately one micrometer in diameter is dispersed in a hydrocarbon oil. A dark-colored dye is also added to the oil, along with surfactants and charging agents that cause the particles to take on an electric charge. This mixture is placed between two parallel, conductive plates separated by a gap of 10 to 100 micrometres. When a voltage is applied across the two plates, the particles migrate electrophoretically to the plate that bears the opposite charge from that on the particles. When the particles are located at the front (viewing) side of the display, it appears white, because the light is scattered back to the viewer by the high-index[ clarification needed ] titania particles. When the particles are located at the rear side of the display, it appears dark, because the incident light is absorbed by the colored dye. If the rear electrode is divided into a number of small picture elements (pixels), then an image can be formed by applying the appropriate voltage to each region of the display to create a pattern of reflecting and absorbing regions.

An electrophoretic display is also known as an EPD. They are typically addressed using MOSFET-based thin-film transistor (TFT) technology. TFTs are required[ citation needed ] to form a high-density image in an EPD. A common application for TFT-based EPDs are e-readers. [10] Electrophoretic displays are considered[ by whom? ] prime examples of the electronic paper category, because of their paper-like appearance and low power consumption.[ citation needed ] Examples of commercial electrophoretic displays include the high-resolution active matrix displays used in the Amazon Kindle, Barnes & Noble Nook, Sony Reader, Kobo eReader, and iRex iLiad e-readers. These displays are constructed from an electrophoretic imaging film manufactured by E Ink Corporation. A mobile phone that used the technology is the Motorola Fone.

Electrophoretic Display technology has also been developed by SiPix and Bridgestone/Delta. SiPix is now part of E Ink Corporation. The SiPix design uses a flexible 0.15 mm Microcup architecture, instead of E Ink's 0.04 mm diameter microcapsules. [11] [12] Bridgestone Corp.'s Advanced Materials Division cooperated with Delta Optoelectronics Inc. in developing Quick Response Liquid Powder Display technology. [13] [14]

Electrophoretic displays can be manufactured using the Electronics on Plastic by Laser Release (EPLaR) process developed by Philips Research to enable existing AM-LCD manufacturing plants to create flexible plastic displays. [15]

Microencapsulated electrophoretic display

Scheme of an electrophoretic display. Electrophoretic display 001.svg
Scheme of an electrophoretic display.
Scheme of an electrophoretic display using color filters. Epd color.svg
Scheme of an electrophoretic display using color filters.

An electrophoretic display forms images by rearranging charged pigment particles with an applied electric field.

Macro photograph of Kindle 3 screen; microcapsules are evident at full size Kindle 3 texture (crop).jpg
Macro photograph of Kindle 3 screen; microcapsules are evident at full size

In the 1990s another type of electronic ink based on a microencapsulated electrophoretic display was conceived and prototyped by a team of undergraduates at MIT [16] as described in their Nature paper. [17] J.D. Albert, Barrett Comiskey, Joseph Jacobson, Jeremy Rubin and Russ Wilcox co-founded E Ink Corporation in 1997 to commercialize the technology. E ink subsequently formed a partnership with Philips Components two years later to develop and market the technology. In 2005, Philips sold the electronic paper business as well as its related patents to Prime View International.

"It has for many years been an ambition of researchers in display media to create a flexible low-cost system that is the electronic analog of paper. In this context, microparticle-based displays have long intrigued researchers. Switchable contrast in such displays is achieved by the electromigration of highly scattering or absorbing microparticles (in the size range 0.1–5 μm), quite distinct from the molecular-scale properties that govern the behavior of the more familiar liquid-crystal displays. Micro-particle-based displays possess intrinsic bistability, exhibit extremely low power d.c. field addressing and have demonstrated high contrast and reflectivity. These features, combined with a near-lambertian viewing characteristic, result in an 'ink on paper' look. But such displays have to date suffered from short lifetimes and difficulty in manufacture. Here we report the synthesis of an electrophoretic ink based on the microencapsulation of an electrophoretic dispersion. The use of a microencapsulated electrophoretic medium solves the lifetime issues and permits the fabrication of a bistable electronic display solely by means of printing. This system may satisfy the practical requirements of electronic paper." [18]

This used tiny microcapsules filled with electrically charged white particles suspended in a colored oil. [17] In early versions, the underlying circuitry controlled whether the white particles were at the top of the capsule (so it looked white to the viewer) or at the bottom of the capsule (so the viewer saw the color of the oil). This was essentially a reintroduction of the well-known electrophoretic display technology, but microcapsules meant the display could be made on flexible plastic sheets instead of glass. One early version of the electronic paper consists of a sheet of very small transparent capsules, each about 40 micrometers across. Each capsule contains an oily solution containing black dye (the electronic ink), with numerous white titanium dioxide particles suspended within. The particles are slightly negatively charged, and each one is naturally white. [7] The screen holds microcapsules in a layer of liquid polymer, sandwiched between two arrays of electrodes, the upper of which is transparent. The two arrays are aligned to divide the sheet into pixels, and each pixel corresponds to a pair of electrodes situated on either side of the sheet. The sheet is laminated with transparent plastic for protection, resulting in an overall thickness of 80 micrometers, or twice that of ordinary paper. The network of electrodes connects to display circuitry, which turns the electronic ink 'on' and 'off' at specific pixels by applying a voltage to specific electrode pairs. A negative charge to the surface electrode repels the particles to the bottom of local capsules, forcing the black dye to the surface and turning the pixel black. Reversing the voltage has the opposite effect. It forces the particles to the surface, turning the pixel white. A more recent implementation of this concept requires only one layer of electrodes beneath the microcapsules. [19] [20] These are commercially referred to as Active Matrix Electrophoretic Displays (AMEPD).

Electrowetting

Electrowetting display (EWD) is based on controlling the shape of a confined water/oil interface by an applied voltage. With no voltage applied, the (colored) oil forms a flat film between the water and a hydrophobic (water-repellent) insulating coating of an electrode, resulting in a colored pixel. When a voltage is applied between the electrode and the water, the interfacial tension between the water and the coating changes. As a result, the stacked state is no longer stable, causing the water to move the oil aside. This makes a partly transparent pixel, or, if a reflective white surface is under the switchable element, a white pixel. Because of the small pixel size, the user only experiences the average reflection, which provides a high-brightness, high-contrast switchable element.

Displays based on electrowetting provide several attractive features. The switching between white and colored reflection is fast enough to display video content. [21] It's a low-power, low-voltage technology, and displays based on the effect can be made flat and thin. The reflectivity and contrast are better than or equal to other reflective display types and approach the visual qualities of paper. In addition, the technology offers a unique path toward high-brightness full-color displays, leading to displays that are four times brighter than reflective LCDs and twice as bright as other emerging technologies. [22] Instead of using red, green, and blue (RGB) filters or alternating segments of the three primary colors, which effectively result in only one-third of the display reflecting light in the desired color, electrowetting allows for a system in which one sub-pixel can switch two different colors independently.

This results in the availability of two-thirds of the display area to reflect light in any desired color. This is achieved by building up a pixel with a stack of two independently controllable colored oil films plus a color filter.

The colors are cyan, magenta, and yellow, which is a subtractive system, comparable to the principle used in inkjet printing. Compared to LCD, brightness is gained because no polarisers are required. [23]

Functional electrowetting displays were produced by Liquavista, [24] Industrial Technology Research Institute, [25] and Advanced Display Technologies. [26] [27]

Electrofluidic

Electrofluidic display is a variation of an electrowetting display. Electrofluidic displays place an aqueous pigment dispersion inside a tiny reservoir. The reservoir comprises <5-10% of the viewable pixel area and therefore the pigment is substantially hidden from view. [28] Voltage is used to electromechanically pull the pigment out of the reservoir and spread it as a film directly behind the viewing substrate. As a result, the display takes on color and brightness similar to that of conventional pigments printed on paper. When voltage is removed liquid surface tension causes the pigment dispersion to rapidly recoil into the reservoir. The technology can potentially provide >85 % white state reflectance for electronic paper. [29]

The core technology was invented at the Novel Devices Laboratory at the University of Cincinnati. The technology is currently being commercialized by Gamma Dynamics.

Interferometric modulator (Mirasol)

The technology used in electronic visual displays that can create various colors via interference of reflected light. The color is selected with an electrically switched light modulator comprising a microscopic cavity that is switched on and off using driver integrated circuits similar to those used to address liquid crystal displays (LCD).

Plasmonic electronic display

Plasmonic nanostructures with conductive polymers have also been suggested as one kind of electronic paper. [30] The material has two parts. The first part is a highly reflective metasurface made by metal-insulator-metal films tens of nanometers in thickness including nanoscale holes. The metasurfaces can reflect different colors depending on the thickness of the insulator. The three primary colors red, green and blue can be used as pixels for full-color displays. The second part is a polymer with optical absorption controllable by an electrochemical potential. After growing the polymer on the plasmonic metasurfaces, the reflection of the metasurfaces can be modulated by the applied voltage. This technology presents broad range colors, high polarization-independent reflection (>50 %), strong contrast (>30 %), the fast response time (hundreds of ms), and long-term stability. In addition, it has ultralow power consumption (< 0.5 mW/cm2) and potential for high resolution (>10000 dpi). Since the ultrathin metasurfaces are flexible and the polymer is soft, the whole system can be bent. Desired future improvements for this technology include bistability, cheaper materials and implementation with TFT arrays.

Other technologies

Other research efforts into e-paper have involved using organic transistors embedded into flexible substrates, [31] [32] including attempts to build them into conventional paper. [33] Simple color e-paper [34] consists of a thin colored optical filter added to the monochrome technology described above. The array of pixels is divided into triads, typically consisting of the standard cyan, magenta and yellow, in the same way as CRT monitors (although using subtractive primary colors as opposed to additive primary colors). The display is then controlled like any other electronic color display.

Disadvantages

Electronic paper technologies sometimes have a very low refresh rate compared to other low-power display technologies, such as LCDs. This prevents producers from implementing sophisticated interactive applications (using fast-moving menus, mouse pointers or scrolling) like those common on standard mobile devices. An example of this limit is that a document might not be smoothly zoomed without either extreme blurring during the transition or a very slow zoom.

An e-ink screen showing the "ghost" of a prior image E-ink ghost.jpg
An e-ink screen showing the "ghost" of a prior image

Another limit is that a shadow of an image may be visible after refreshing parts of the screen. Such shadows are termed "ghost images", and the effect is termed "ghosting". This effect is reminiscent of screen burn-in but, unlike screen burn-in, is solved after the screen is refreshed several times. Turning every pixel white, then black, then white, helps normalize the contrast of the pixels. This is why several devices with this technology "flash" the entire screen white and black when loading a new image.[ citation needed ]

E Ink Corporation of E Ink Holdings Inc. released the first colored e-ink displays to be used in a marketed product. The Ectaco Jetbook Color was released in 2012 as the first colored e-ink e-reader, which used E Ink's Triton display technology. [35] [36] E Ink in early 2015 also announced another color e-ink technology called Prism. [37] This new technology is a color changing film that can be used for e-reader, but Prism is also marketed as a film that can be integrated into architectural design such as "wall, ceiling panel, or entire room instantly." [38] The disadvantage of these current color displays is that they are considerably more expensive than standard E Ink displays. The JetBook Color costs roughly nine times more than other popular e-readers such as the Amazon Kindle. [35] [36] As of January 2015, Prism had not been announced to be used in the plans for any e-reader devices. [37]

Applications

An e-paper display on a watch refreshes to remove ghosts. EInk Refresh.gif
An e-paper display on a watch refreshes to remove ghosts.

Several companies are simultaneously developing electronic paper and ink. While the technologies used by each company provide many of the same features, each has its own distinct technological advantages. All electronic paper technologies face the following general challenges:

Electronic ink can be applied to flexible or rigid materials. For flexible displays, the base requires a thin, flexible material tough enough to withstand considerable wear, such as extremely thin plastic. The method of how the inks are encapsulated and then applied to the substrate is what distinguishes each company from others. These processes are complex and are carefully guarded industry secrets. Nevertheless, making electronic paper is less complex and costly than LCDs.

There are many approaches to electronic paper, with many companies developing technology in this area. Other technologies being applied to electronic paper include modifications of liquid crystal displays, electrochromic displays, and the electronic equivalent of an Etch A Sketch at Kyushu University. Advantages of electronic paper include low power usage (power is only drawn when the display is updated), flexibility and better readability than most displays. Electronic ink can be printed on any surface, including walls, billboards, product labels and T-shirts. The ink's flexibility would also make it possible to develop rollable displays for electronic devices.

The Motorola F3 uses an e-paper display instead of an LCD. Motorola F3.JPG
The Motorola F3 uses an e-paper display instead of an LCD.

Wristwatches

In December 2005, Seiko released the first electronic ink based watch called the Spectrum SVRD001 wristwatch, which has a flexible electrophoretic display [39] and in March 2010 Seiko released a second generation of this famous e-ink watch with an active matrix display. [40] The Pebble smart watch (2013) uses a low-power memory LCD manufactured by Sharp for its e-paper display. [41]

E-book readers

iLiad e-book reader equipped with an e-paper display visible in the sunlight Bouquin electronique iLiad en plein soleil.jpg
iLiad e-book reader equipped with an e-paper display visible in the sunlight

In 2004 Sony released the Librié in Japan, the first e-book reader with an electronic paper E Ink display. In September 2006, Sony released the PRS-500 Sony Reader e-book reader in the USA. On October 2, 2007, Sony announced the PRS-505, an updated version of the Reader. In November 2008, Sony released the PRS-700BC, which incorporated a backlight and a touchscreen.

In late 2007, Amazon began producing and marketing the Amazon Kindle, an e-book reader with an e-paper display. In February 2009, Amazon released the Kindle 2 and in May 2009 the larger Kindle DX was announced. In July 2010 the third-generation Kindle was announced, with notable design changes. [42] The fourth generation of Kindle, called Touch, was announced in September 2011 that was the Kindle's first departure from keyboards and page turn buttons in favor of touchscreens. In September 2012, Amazon announced the fifth generation of the Kindle called the Paperwhite, which incorporates a LED frontlight and a higher contrast display. [43]

In November 2009, Barnes and Noble launched the Barnes & Noble Nook, running an Android operating system. It differs from other e-readers in having a replaceable battery, and a separate touch-screen color LCD below the main electronic paper reading screen.

In 2017, Sony and reMarkable offered e-books tailored for writing with a smart stylus. [44]

Newspapers

In February 2006, the Flemish daily De Tijd distributed an electronic version of the paper to select subscribers in a limited marketing study, using a pre-release version of the iRex iLiad. This was the first recorded application of electronic ink to newspaper publishing.

The French daily Les Échos announced the official launch of an electronic version of the paper on a subscription basis, in September 2007. Two offers were available, combining a one-year subscription and a reading device. The offer included either a light (176g) reading device (adapted for Les Echos by Ganaxa) or the iRex iLiad. Two different processing platforms were used to deliver readable information of the daily, one based on the newly developed GPP electronic ink platform from Ganaxa , and the other one developed internally by Les Echos.

Displays embedded in smart cards

Flexible display cards enable financial payment cardholders to generate a one-time password to reduce online banking and transaction fraud. Electronic paper offers a flat and thin alternative to existing key fob tokens for data security. The world's first ISO compliant smart card with an embedded display was developed by Innovative Card Technologies and nCryptone in 2005. The cards were manufactured by Nagra ID.

Status displays

USB flash drive with E Ink-implemented capacity meter of available flash memory Lexar Jumpdrive Secure II Plus.jpg
USB flash drive with E Ink-implemented capacity meter of available flash memory

Some devices, like USB flash drives, have used electronic paper to display status information, such as available storage space. [45] Once the image on the electronic paper has been set, it requires no power to maintain, so the readout can be seen even when the flash drive is not plugged in.

Mobile phones

Motorola's low-cost mobile phone, the Motorola F3, uses an alphanumeric black-and-white electrophoretic display.

The Samsung Alias 2 mobile phone incorporates electronic ink from E Ink into the keypad, which allows the keypad to change character sets and orientation while in different display modes.

On December 12, 2012, Yota Devices announced the first "YotaPhone" prototype and was later released in December 2013, a unique double-display smartphone. It has a 4.3-inch, HD LCD on the front and an e-ink display on the back.

Electronic shelf labels

E-Paper based electronic shelf labels (ESL) are used to digitally display the prices of goods at retail stores. Electronic paper-based labels are updated via two-way infrared or radio technology.

Public transport timetables

Tram timetables on e-paper. Prague, prototype from May 2019 Nadrazi Vysocany, zastavkovy sloupek s e-papirem, jizdni rady.jpg
Tram timetables on e-paper. Prague, prototype from May 2019

E-paper displays at bus or trams stops can be shown using eletronic paper. Information can be remotely updated. Compared to LED or LCD displays, they have less energy consumption and the text or graphics stays visible during a power failure. Compared to LCD displays, it is well visible also under full sunshine.

Digital signage

Because of its energy-saving properties, electronic paper has proved a technology suited to digital signage applications.

Other

Other proposed applications include clothes, digital photo frames, information boards, and keyboards. Keyboards with dynamically changeable keys are useful for less represented languages, non-standard keyboard layouts such as Dvorak, or for special non-alphabetical applications such as video editing or games. The reMarkable is a writer tablet for reading and taking notes.

See also

Related Research Articles

Liquid-crystal display display that uses the light-modulating properties of liquid crystals

A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome. LCDs are available to display arbitrary images or fixed images with low information content, which can be displayed or hidden, such as preset words, digits, and seven-segment displays, as in a digital clock. They use the same basic technology, except that arbitrary images are made from a matrix of small pixels, while other displays have larger elements. LCDs can either be normally on (positive) or off (negative), depending on the polarizer arrangement. For example, a character positive LCD with a backlight will have black lettering on a background that is the color of the backlight, and a character negative LCD will have a black background with the letters being of the same color as the backlight. Optical filters are added to white on blue LCDs to give them their characteristic appearance.

Electroluminescence an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field

Electroluminescence (EL) is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field. This is distinct from black body light emission resulting from heat (incandescence), a chemical reaction (chemiluminescence), sound (sonoluminescence), or other mechanical action (mechanoluminescence).

A plasma display panel (PDP) is a type of flat panel display that uses small cells containing plasma; ionized gas that responds to electric fields.

A flat-panel display (FPD) is an electronic viewing technology used to enable people to see content in a range of entertainment, consumer electronics, personal computer, and mobile devices, and many types of medical, transportation and industrial equipment. They are far lighter and thinner than traditional cathode ray tube (CRT) television sets and video displays and are usually less than 10 centimetres (3.9 in) thick. Flat-panel displays can be divided into two display device categories: volatile and static. Volatile displays require that pixels be periodically electronically refreshed to retain their state. A volatile display only shows an image when it has battery or AC mains power. Static flat-panel displays rely on materials whose color states are bistable, and as such, flat-panel displays retain the text or images on the screen even when the power is off. As of 2016, flat-panel displays have almost completely replaced old CRT displays. In many 2010-era applications, specifically small portable devices such as laptops, mobile phones, smartphones, digital cameras, camcorders, point-and-shoot cameras, and pocket video cameras, any display disadvantages of flat-panels are made up for by portability advantages.

Backlight illumination from behind of a screen, sign, or other object needing to be read

A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light by themselves—unlike, for example, cathode ray tube (CRT) displays—they need illumination to produce a visible image. Backlights illuminate the LCD from the side or back of the display panel, unlike frontlights, which are placed in front of the LCD. Backlights are used in small displays to increase readability in low light conditions such as in wristwatches, and are used in smart phones, computer displays and LCD televisions to produce light in a manner similar to a CRT display. A review of some early backlighting schemes for LCDs is given in a report Engineering and Technology History by Peter J. Wild.

An e-reader, also known as an e-book reader, is a portable electronic device that is designed primarily for the purpose of reading e-books and periodicals. E-readers have a similar form factor to a tablet and usually refers to devices that use electronic paper resulting in better screen readability, especially in bright sunlight, and longer battery life when compared to a tablet. An e-reader's battery will typically last for multiple weeks. In contrast to an e-reader, a tablet has a screen capable of higher refresh rates which make them more suitable for interaction such as playing a video game or watching a video clip.

A thin-film-transistor liquid-crystal display is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven LCDs with a few segments.

Surface-conduction electron-emitter display technology

A surface-conduction electron-emitter display (SED) is a display technology for flat panel displays developed by a number of companies. SEDs use nanoscopic-scale electron emitters to energize colored phosphors and produce an image. In a general sense, an SED consists of a matrix of tiny cathode ray tubes, each "tube" forming a single sub-pixel on the screen, grouped in threes to form red-green-blue (RGB) pixels. SEDs combine the advantages of CRTs, namely their high contrast ratios, wide viewing angles and very fast response times, with the packaging advantages of LCD and other flat panel displays. They also use much less power than an LCD television of the same size.

Rollable display type of screen that can be rolled up like a scroll without the image or text being distorted

A rollable display, also known as a flexible display, is a type of screen that can be rolled up like a scroll without the image or text being distorted. Technologies involved in building a rollable display include electronic ink, Gyricon, Organic LCD, and OLED.

Gyricon is a type of electronic paper developed at the Xerox PARC. It has many of the same properties as paper: it is flexible, contains an image, and is viewable from a wide angle, but it can be erased and written thousands of times.

E Ink electronic paper manufactured by E Ink Corporation

E Ink is a popular type of electronic paper (e-paper) display technology, characterized by a wide viewing angle and low power requirements. The technology has been commercialized by the E Ink Corporation, which was co-founded in 1997 by MIT undergraduates J.D. Albert & Barrett Comiskey, MIT Media Lab professor Joseph Jacobson, Jerome Rubin and Russ Wilcox.

Twisted nematic field effect type of thin-film-transistor liquid-crystal display technology

The twisted nematic effect (TN-effect) was a main technology breakthrough that made LCDs practical. Unlike earlier displays, TN-cells did not require a current to flow for operation and used low operating voltages suitable for use with batteries. The introduction of TN-effect displays led to their rapid expansion in the display field, quickly pushing out other common technologies like monolithic LEDs and CRTs for most electronics. By the 1990s, TN-effect LCDs were largely universal in portable electronics, although since then, many applications of LCDs adopted alternatives to the TN-effect such as in-plane switching (IPS) or vertical alignment (VA).

E Ink Corporation manufacturer of electrophoretic displays

E Ink Corporation is a subsidiary of E Ink Holdings (EIH), a Taiwanese Holding Company (8069.TWO) manufacturer of electrophoretic displays marketed under the name E Ink, a kind of electronic paper. E Ink is located in Billerica, Massachusetts, and was co-founded in 1997 by undergraduates J.D. Albert & Barrett Comiskey, Joseph Jacobson, Jerome Rubin and Russ Wilcox. Two years later, E Ink partnered with Philips to develop and market the technology. Jacobson and Comiskey are listed as inventors on the original patent filed in 1996. Albert, Comiskey and Jacobsen were inducted into the National Inventors Hall of Fame in May 2016. In 2005, Philips sold the electronic paper business as well as its related patents to Prime View International (PVI).

Plastic Logic

Plastic Logic Germany develops and manufactures electrophoretic displays (EPD), based on organic thin-film transistor (OTFT) technology, in Dresden, Germany.

Large-screen television technology technology

Large-screen television technology developed rapidly in the late 1990s and 2000s. Various thin screen technologies are being developed, but only the liquid crystal display (LCD), plasma display (PDP) and Digital Light Processing (DLP) have been released on the public market. A video display that uses large-screen television technology is called a jumbotron. These technologies have almost completely displaced cathode ray tubes (CRT) in television sales, due to the necessary bulkiness of cathode ray tubes. However, recently released technologies like organic light-emitting diode (OLED) and not-yet released technologies like surface-conduction electron-emitter display (SED) or field emission display (FED) are making their way to replace the first flat screen technologies in picture quality. The diagonal screen size of a CRT television is limited to about 40 inches because of the size requirements of the cathode ray tube, which fires three beams of electrons onto the screen, creating a viewable image. A larger screen size requires a longer tube, making a CRT television with a large screen unrealistic because of size. The aforementioned technologies can produce large-screen televisions that are much thinner.

Hanlin eReader

The Hanlin is an e-Reader, an electronic book (e-book) reading device. The Hanlin v3 features a 6" (15 cm), 4-level grayscale electrophoretic display with a resolution of 600×800 pixels, while the v3+ features a 16-level grayscale display. The Hanlin v5 Mini, features a 5" (15 cm), 8-level grayscale electrophoretic display with a resolution of 600×800 pixels. The device runs a Linux-based OS.

Interferometric modulator display is a technology used in electronic visual displays that can create various colors via interference of reflected light. The color is selected with an electrically switched light modulator comprising a microscopic cavity that is switched on and off using driver integrated circuits similar to those used to address liquid crystal displays (LCD). An IMOD-based reflective flat panel display includes hundreds of thousands of individual IMOD elements each a microelectromechanical systems (MEMS)-based device.

Digital newspaper technology is the technology used to create or distribute a digital newspaper.

The DR800SG is an electronic handheld device, or e-Reader, which can be used for document reading using an electronic paper display.

Liquavista was a Dutch-based company founded in 2006 as a spin-off from Philips. Its research and development have included efforts to develop colour e-paper video screens that can work with or without a backlight using electrowetting technology. Liqavista began the final step in fully commercialising the technology in 2010, as it sent out SDKs to OEMs. Liquavista was reported to anticipate the first productions runs of its electrowetting display panel to come in 2013 but it did not happen.

References

  1. Heikenfeld (2011). "A critical review of the present and future prospects for electronic paper". J. Soc. Inf. Display. 19 (2): 129. doi:10.1889/JSID19.2.129.
  2. "IRex Takes On The Kindle". Forbes. 2008-09-23. Retrieved 2008-11-06.
  3. "SiPix pricing labels". Archived from the original on 2008-01-09. Retrieved 2008-01-13.
  4. "magink e-paper billboards". Archived from the original on 2007-08-21. Retrieved 2008-01-13.
  5. Genuth, Iddo (2007-10-15). "The Future of Electronic Paper". The Future Of Things. Retrieved 2 March 2015.
  6. Crowley, Joseph M.; Sheridon, Nicholas K.; Romano, Linda (2002). "Dipole moments of gyricon balls". Journal of Electrostatics. 55 (3–4): 247–259. doi:10.1016/S0304-3886(01)00208-X.
  7. 1 2 Daviss, Bennett (15 May 1999), "Paper goes electric", New Scientist, Reed Business Information, retrieved 20 November 2011
  8. Techon Soken electronic wall-paper
  9. J. Liiv. PVDF as material for active element of twisting-ball displays
  10. Brotherton, S. D. (2013). Introduction to Thin Film Transistors: Physics and Technology of TFTs. Springer Science & Business Media. ISBN   9783319000022.
  11. "E-Paper (E Ink) introduction and basic e-paper information".
  12. "Epaper technologies guide". epapercentral. Archived from the original on 2012-09-19.
  13. "製品情報(タイヤ/化工品/スポーツ用品/自転車) - 株式会社ブリヂストン". Archived from the original on 2009-07-16. Retrieved 2009-11-11.
  14. "BridgeStone Flexible ePaper – Quick Response Liquid Powder Technology - The Cool Gadgets - Quest for The Coolest Gadgets". 2009-10-29.
  15. "53.4: Ultra-Thin Flexible OLED Device". SID Symposium Digest of Technical Papers -- May 2007 -- Volume 38, Issue 1, pp. 1599-1602. Retrieved 2007-12-03.
  16. Journal, Alec Klein Staff Reporter of The Wall Street. "A New Printing Technology Sets Off a High-Stakes Race". Wall Street Journal. ISSN   0099-9660 . Retrieved 2015-11-27.
  17. 1 2 Comiskey, B.; Albert, J. D.; Yoshizawa, H.; Jacobson, J. (1998). "An electrophoretic ink for all-printed reflective electronic displays". Nature. 394 (6690): 253–255. doi:10.1038/28349.
  18. Comiskey, Barrett; Albert, J. D.; Yoshizawa, Hidekazu; Jacobson, Joseph (1998-07-16). "An electrophoretic ink for all-printed reflective electronic displays". Nature. 394 (6690): 253–255. doi:10.1038/28349. ISSN   0028-0836.
  19. Sample, Ian (24 April 2001). "Roll The Presses". New Scientist. Retrieved 20 November 2011.
  20. Rogers, John A; Bao, Zhenan; Baldwin, Kirk; Dodabalapur, Ananth; Crone, Brian; Raju, V R; Kuck, Valerie; Katz, Howard; Amundson, Karl; Ewing, Jay; Drzaic, Paul (24 April 2001). "Paper-like electronic displays: Large-area rubber-stamped plastic sheets of electronics and microencapsulated electrophoretic inks". PNAS. 98 (9): 4835–4840. doi:10.1073/pnas.091588098. PMC   33123 . PMID   11320233.
  21. Zyga, Lisa (26 July 2010), "Oil-based color pixels could let you watch videos on e-paper", PhysOrg, retrieved 20 November 2011
  22. LiquaVista electrowetting display technologies http://www.liquavista.com
  23. "The Hindu: Technology for reflective full-color display". October 2, 2003. Archived from the original on 2011-03-09. Retrieved 2018-11-30.
  24. "Home - Liquavista - Electrowetting based low power, always viewable color video displays".
  25. [ dead link ]
  26. Blankenbach K, Schmoll A, Bitman A, Bartels F and Jerosch D 2008 Novel highly reflective and bistable electrowetting displays SID J. 16 237–44
  27. http://www.iop.org/Select/article/0960-1317/19/6/065029/jmm9_6_065029.pdf?request-id=37ba45f3-e740-4c0d-8c35-dcf2d9af1f10
  28. "Gamma Dynamic Technology". Gamma Dynamics. Archived from the original on 3 March 2012. Retrieved 1 April 2012.
  29. May 2009 issue of Nature Photonics
  30. Xiong, Kunli; Emilsson, Gustav; Maziz, Ali. "Plasmonic Metasurfaces with Conjugated Polymers for Flexible Electronic Paper in Color"Advanced Materials: sid. n/a–n/a. doi:10.1002/adma.201603358. ISSN 1521-4095. 28 October 2016.
  31. Huitema, H. E. A.; Gelinck, G. H.; van der Putten, J. B. P. H.; Kuijk, K. E.; Hart, C. M.; Cantatore, E.; Herwig, P. T.; van Breemen, A. J. J. M.; de Leeuw, D. M. (2001). "Plastic transistors in active-matrix displays". Nature. 414 (6864): 599. doi:10.1038/414599a. PMID   11740546.
  32. Gelinck, G. H.; et al. (2004). "Flexible active-matrix displays and shift registers based on solution-processed organic transistors". Nature Materials. 3 (2): 106–110. doi:10.1038/nmat1061. PMID   14743215.
  33. Andersson, P.; Nilsson, D.; Svensson, P. O.; Chen, M.; Malmström, A.; Remonen, T.; Kugler, T.; Berggren, M. (2002). "Active Matrix Displays Based on All-Organic Electrochemical Smart Pixels Printed on Paper". Adv Mater. 14 (20): 1460–1464. doi:10.1002/1521-4095(20021016)14:20<1460::aid-adma1460>3.0.co;2-s. Archived from the original on 2011-03-09.
  34. Duncan Graham-Rowe (June 6, 2001). "Read all about it". New Scientist. Archived from the original on 2007-09-30.
  35. 1 2 "Ebook reader for education - ebook for schools, students, middle school. Educational ebook reader for learning - jetBook k-12 - ECTACO".
  36. 1 2 "E Ink".
  37. 1 2 Liszewski, Andrew. "Color-Changing E Ink Is Here, But Not In eBook Readers".
  38. "About E Ink Prism". Archived from the original on 2015-12-08. Retrieved 2015-11-28.
  39. "The first watch that uses flexible e-paper hits the stores" Archived 2009-08-12 at the Wayback Machine 2005-12-01
  40. "Baselworld 2010 - Seiko Press Conference - Future Now, EPD Watch Archived 2010-03-25 at the Wayback Machine 2010-04-01
  41. "Pebble Teardown".
  42. "Amazon Media Room: Press Releases". Archived from the original on 2014-10-04. Retrieved 2010-09-28.
  43. "Kindle Paperwhite e-reader announced, $119 Wi-Fi and $179 3G models ship October 1st" . Retrieved 7 September 2012.
  44. Coldewey, Devin. "Sony and reMarkable's dueling e-paper tablets are strange but impressive beasts". TechCrunch. Retrieved 2017-12-23.
  45. "LEXAR ADDS INNOVATIVE STORAGE CAPACITY METER WITH ELECTRONIC PAPER DISPLAY FROM E INK". Eink - Press Release. Archived from the original on 14 October 2013. Retrieved 1 April 2012.

Further reading