Tag: E Ink Display

August 9, 2025
DIY Dual-Screen E-Reader That Looks Like a Real Book
Key Takeaways
1. A Reddit user created a dual-screen e-reader that folds in half, featuring two e-paper displays for a more book-like experience.
2. The e-reader uses an ESP32S-3 chip and has two 5.83-inch e-paper screens, along with dual 1,300 mAh batteries for extended use.
3. It boasts low energy consumption, allowing the device to last over a month on a single charge due to its efficient components.
4. The design includes an SD card slot, physical navigation buttons, and a USB-C port, while being sleek and protective without a case.
5. The software is still basic, relying on custom code for ePUB parsing, text rendering, and the user interface.
E-reader makers frequently say that their E Ink screens are the ideal substitute for traditional paper books. Yet, one major distinction between e-readers and real books is that the screen merely replicates a single “page.” This can sometimes give off a vibe similar to reading a brochure instead of an actual book.
Innovative Design
Luckily, an individual has devised a unique idea for a dual-screen e-reader that folds in half, showcasing two e-paper screens when opened. This brilliant idea comes from a Reddit user known as Spacerower, who began looking for solutions after he broke the screen on his older e-reader.
Not finding an e-reader that met all his needs, he decided to create one on his own. This led to the development of the dual-screen e-reader. It features an ESP32S-3 chip and includes two 5.83-inch e-paper displays. Moreover, there are two 1,300 mAh batteries included, so it’s not just the screens that come in pairs.
Power Efficiency
E-paper displays are recognized for their very low energy consumption. When you pair this with the efficient ESP32-S3 chip and its 7 µA deep sleep mode, the device can last over a month on a single charge without any issues.
Additionally, the e-reader comes equipped with an SD card slot for saving books and other materials, some physical buttons for navigation and page turning, and a USB-C port for charging. The device is relatively sleek, with each side measuring just 8 mm thick. When closed, it measures 16 mm. A significant advantage of this dual-screen design is that the displays are protected, meaning it doesn’t require a case for safeguarding.
Software Limitations
However, there are some drawbacks regarding the software. The maker confesses in the Reddit discussion that the software is still quite basic. Currently, the e-reader uses custom code for ePUB parsing, text rendering, and the user interface.
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Tags: Dual-Screen E-Reader, E Ink Display, ESP32S-3
August 5, 2025
E Ink Display with 75 Hz Refresh Rate: Modos Features
Key Takeaways
1. Modos Paper Monitor features E Ink screens in 6-inch and 13.3-inch sizes with a 75 Hz refresh rate, suitable for moving images.
2. The monitors are open hardware, allowing for custom configurations, appealing to engineers and designers.
3. The 13.3-inch model has a resolution of 1,600 x 1,200 pixels, while the 6-inch model has a resolution of 1,448 x 1,072 pixels.
4. Users can connect via HDMI or USB-C, but the monitors do not support touch functionality or backlighting.
5. The 6-inch Dev Kit costs $199 and the 13.3-inch version costs $599, with expected delivery in January 2026, but no guarantee of fulfillment due to crowdfunding risks.
Modos Paper Monitor is an E Ink screen available in two different sizes: 6 inches and 13.3 inches. What stands out about it is the impressive refresh rate of 75 Hz, which is pretty rare for E Ink displays and should be good enough for showing moving images. However, a significant downside is that these monitors can’t show colors. On the flip side, their design as an open hardware e-paper monitor allows for multiple configurations, making it attractive to engineers, product designers, programmers, and similar professionals.
Specifications of the Displays
The larger 13.3-inch model boasts a resolution of 1,600 x 1,200 pixels, while the smaller 6-inch model has a resolution of 1,448 x 1,072 pixels. The CrowdSupply campaign isn’t offering finished products but is instead providing developer kits that include a motherboard and the display itself. Users can transmit image content through HDMI or USB-C, and the motherboard features an FPGA controller. This is essentially open hardware, which means users can make a lot of custom changes on their own, and it claims to be compatible with macOS, Windows, and Linux. Nonetheless, there are some restrictions that potential buyers need to think about before buying, like the absence of touchscreen support and backlighting.
Pricing and Delivery Information
The price for the 6-inch Modos Paper Dev Kit is set at $199, while the 13-inch version costs $599. The expected delivery date is January 2026. Given that this is a crowdfunding initiative, there is no assurance that backers will actually receive their orders.
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Tags: E Ink Display, Modos Paper Monitor, open hardware
August 4, 2025
New TRMNL X Large Waterproof Smart E-Ink Display Launches
Key Takeaways
1. The TRMNL X is a larger, improved version of the original e-ink display, designed for home and office use.
2. It features a 10.3-inch display with a resolution of 1,872 x 1,404, supporting 16 shades of gray and quick refresh rates.
3. The device supports touch gestures, includes an accelerometer, and offers extensive customization through open-source firmware and multiple plugins.
4. It comes with a 5,000 mAh battery that lasts three months on a single charge and is available for pre-order at $189.00.
5. The TRMNL X will ship before the end of 2025 and offers various frame colors and optional accessories for enhanced functionality.
The TRMNL X smart e-ink display has been announced. This new device is a larger and improved version of the original TRMNL display, which successfully raised funds in 2024 and became available for purchase in June 2025. It is crafted for use at home or in the office, capable of displaying various information such as news updates, weather forecasts, sports scores, and your daily calendar.
Specifications and Features
The TRMNL X features a 10.3-inch (~262 mm) e-ink display with a resolution of 1,872 x 1,404 and supports 16 shades of gray. A complete refresh takes about 1.2 seconds, while a partial refresh is quicker at 200 ms. The device introduces touch gesture support, an integrated accelerometer, and a Qwiic connector. Notably, the brand’s logo is no longer visible on the front, and support for portrait mode is reportedly coming soon.
Versatile and Modifiable
This device is aimed at tech enthusiasts, operating on TRMNL’s open-source firmware, and includes screws that make it easy to open and modify. It is compatible with both 2.4 and 5 GHz Wi-Fi, and offers eight different dashboard layouts along with more than 80 plugins, such as Google Calendar, ChatGPT, YouTube, Reddit, and Shopify. Although there is no official integration with Home Assistant, user demonstrations of this have surfaced in forums. The latest version includes a stand, a magnetic power mount with USB-C charging, and is claimed to be waterproof. Additionally, the standard 5,000 mAh battery is expected to provide three months of use on a single charge.
You can now reserve your TRMNL X for $189.00/£145.00/€166.95, with a recommended retail price of $219.00/£168.00/€166.95. The company has mentioned that shipping will occur before the end of 2025, although they have not specified an exact date. The website assures customers that they may cancel their order and obtain a refund “at any time.” There are six frame colors available: black, white, clear, sage, gray, and faux wood. Additionally, optional accessories include a 7,000 mAh battery upgrade priced at $10/£8.00/€8.95 and the Clarity Kit, which features the battery upgrade, Developer Edition device, and a charging cable for $35/£27.00/€21.95.
Conclusion
In summary, the TRMNL X represents a significant upgrade over its predecessor, offering a range of features tailored for both casual users and tech enthusiasts. With its stylish design and robust functionality, it’s positioned to meet various needs in modern homes and offices.
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Tags: E Ink Display, Open source, TRMNL X
July 21, 2025
Samsung Color E-Paper EM32DX: Revolutionizing E-Paper Technology
Key Takeaways
1. Samsung launched the Color E-Paper EM32DX, a 32-inch e-ink display designed for commercial use, offering energy efficiency by displaying static images without constant power.
2. The display uses microcapsule ink technology with four pigments, allowing it to show images that remain visible without additional power once displayed.
3. It features a slim design (8.6 mm thick, 2.5 kg weight) for easy installation and portability.
4. Samsung’s Color Imaging Algorithm enables the display to produce up to 2.5 million colors, achieving a 40-fold increase in color depth compared to traditional e-paper.
5. The system can be managed via the Samsung VXT platform and is made with recycled materials, emphasizing eco-friendliness and sustainability.
In April 2025, Samsung introduced the Color E-Paper EM32DX, a 32-inch e-ink display specifically made for commercial environments, including retail stores and food & beverage businesses. A standout feature of this panel is its ability to show static images without needing a constant power source, which sets a new benchmark for energy efficiency and eco-friendliness.
Innovative Technology
Samsung explains that the Color E-Paper employs a microcapsule ink technology. Each tiny capsule includes four pigments (red, yellow, blue, and white) that rise to the surface when an electric current is applied, functioning similarly to traditional printing methods. Once an image is displayed, it remains visible without using any more power. With a thickness of only 8.6 mm (0.3 in) and a weight of just 2.5 kg (5.5 lb) including the battery, the system is designed for easy installation due to its slim and lightweight build.
Exceptional Color Range
A notable aspect of the Color E-Paper is Samsung’s unique Color Imaging Algorithm, which enables the display to generate up to 2.5 million colors using just six base shades by utilizing probability distribution and optimized arrangements. Samsung boasts a 40-fold enhancement in color depth compared to traditional e-paper products, and the images produced are strikingly smooth and gentle on the eyes.
User-Friendly Management
The Color E-Paper system can be controlled via the Samsung VXT platform, which offers features like color previews, layout designs, and content updates. Additionally, the display is made with recycled plastics and comes in environmentally friendly packaging.
The Samsung Color E-Paper technology was presented at Integrated Systems Europe (ISE) 2025, where it garnered multiple awards. Samsung also announced intentions to roll out more display sizes and further enhance its research in color optimization.
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Tags: Color E-Paper EM32DX, E Ink Display, Samsung
April 24, 2025
Figment e-ink Handheld: Transform Books into Interactive Games
Key Takeaways
1. E-ink displays offer excellent readability in bright sunlight and consume very little energy but have slow refresh rates, making them unsuitable for gaming.
2. Figment’s new gaming handheld will feature a 7.5-inch e-ink display, designed primarily for text-based games and interactive storytelling.
3. The device is powered by a low-performance ESP32 processor, sufficient for displaying text and images but requiring an internet connection for certain features.
4. The Figment handheld can display standard books offline, providing flexibility for users.
5. The project is still in early development, and interested individuals can sign up for updates on its progress.
E-ink displays are designed to mimic real paper, and the latest models perform remarkably well, allowing for easy reading in bright sunlight and boasting very low energy use. However, their slow refresh rates make them generally unsuitable for gaming handhelds.
A Unique Gaming Experience
Despite this, Figment plans to incorporate an e-ink screen in its new gaming handheld, which is mainly geared toward text-based games or “Choose Your Own Adventure” style books. Specifically, Figment has chosen a 7.5-inch e-ink display housed in a casing about the same size as an Asus ROG Ally. The device features a D-pad with four buttons on the left and three action buttons on the right.
Prototype and Performance
The current version is built with a 3D-printed shell and powered by an ESP32 processor, which is not very strong. Nevertheless, since the handheld only needs to show text and images, Figment doesn’t require high performance. One drawback of the slower processor is that some features necessitate an active internet connection. This mainly includes the ability to create “Choose Your Own Adventure” games from existing e-books using AI technology.
Future Developments
On the bright side, Figment can still display standard books without needing an internet connection. The project is still in development and at an early phase, so it remains uncertain if the Figment handheld will ever reach store shelves. Those interested in Figment can sign up with their email to stay informed about this fascinating project.
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Tags: Asus ROG Ally, E Ink Display, Figment
April 9, 2025
Bigme Hibreak Launches Non-Cellular Variant: Worth the Upgrade?
Key Takeaways
1. Bigme launched a new e-reader version of the Hibreak, called ePaper Reader HiBreak, which lacks cellular functions.
2. The device features a 5.84-inch black-and-white E Ink display with a resolution of 275 ppi and runs on a MediaTek Helio P35 processor.
3. It includes 6GB of RAM, 128GB of internal storage, and a MicroSD card slot for up to 1TB of extra storage.
4. The Hibreak e-reader has a 5MP front camera, a 13MP rear camera, dual-band Wi-Fi, Bluetooth 5.0, and a 3,300mAh battery.
5. Priced at $299, the e-reader is more expensive than the 4G Hibreak model, leading some buyers to consider the cellular version instead.
Last year, Bigme launched the Hibreak, an Android 4G smartphone featuring an E Ink screen. Earlier this year, they introduced a 5G version called the Hibreak Pro. Now, there’s a new version of the Hibreak that doesn’t support cellular functions.
New Device Unveiling
As first reported by Good e-reader, this new device lacks an official name; however, a sticker on its packaging says ePaper Reader HiBreak. Its design closely resembles the HiBreak, which is listed on Amazon for $269.99, but there are several distinctions between the two models.
Specs and Features
The Hibreak e-reader boasts a 5.84-inch black-and-white E Ink display with a resolution of 275 ppi. Unlike the cellular version (4G), it appears there isn’t a color E Ink variant available. This device runs on MediaTek’s Helio P35 processor and comes with 6GB of RAM and 128GB of internal storage. Additionally, it features a MicroSD card slot that allows for up to 1TB of extra storage.
In an unboxing video, it was shown that the Hibreak has a hybrid SIM tray, but the section for a SIM card is blocked, preventing users from inserting one. The e-reader includes a 5MP front camera, a 13MP rear camera, dual-band Wi-Fi, Bluetooth 5.0, and a 3,300mAh battery that charges through USB-C. There’s also a single speaker in the earpiece, but it does not have an audio jack. Similar to the Hibreak smartphone, this e-reader operates on the older Android 11.
Pricing and Availability
The Bigme Hibreak e-reader isn’t featured on Bigme’s own website, but it can be purchased from Good e-reader for $299. This price is higher than the 4G model, which costs $249 for the black-and-white version, and $279 for the color epaper version. Given the steep price, potential buyers might find it more advantageous to opt for the cellular version instead.
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Tags: Bigme Hibreak, E Ink Display, Hibreak e-reader
March 29, 2025
Dasung Paperlike 13K e-ink Monitor: 3.2K Resolution & Smooth Refresh
Key Takeaways
1. Dasung launched the Paperlike 13K, a 13.3-inch e-ink monitor with a resolution of 3200 x 2400 pixels.
2. The monitor has a refresh rate of 37Hz, offering better performance than typical e-ink displays.
3. It operates without a backlight, providing easy readability in bright sunlight.
4. The dimensions are approximately 12 x 10 x 0.2 inches, with connectivity options including mini HDMI and USB Type-C.
5. The Paperlike 13K is priced around $620 and is currently available for purchase in Asia.
Dasung is a popular name in the field of e-ink displays, offering a range of portable and stationary monitors. Recently, they launched the Dasung Paperlike 13K. The “13K” doesn’t denote the resolution; rather, it signifies the screen size, which is 13.3 inches measured diagonally. This display has a refresh rate of 37Hz and a resolution of 3200 x 2400 pixels, promising excellent image clarity.
Refresh Rate and Technology
The refresh rate of the Paperlike 13K is significant, especially when compared to other e-ink monitors known for their slower performance compared to standard LCD or OLED screens. This technology operates without a backlight, making text easy to read even in bright sunlight. This is why e-ink displays are commonly found in many e-readers, including the well-loved Kindle by Amazon.
Dimensions and Connectivity
In terms of size, the Paperlike 13K measures about 12 x 10 x 0.2 inches and can connect to a PC, laptop, or other devices using mini HDMI or USB Type-C connections. While it comes with built-in speakers, the portable monitor also includes the standard 3.5mm headphone jack. Currently, this e-ink display is available for purchase in Asia at around $620, but details about a potential global availability remain unclear.
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Tags: Dasung Paperlike 13K, E Ink Display, portable monitor
February 2, 2025
Switch to an E-Ink QWERTY Smartphone for a Simpler Digital Life
Minimal Phone Begins Shipping
The Minimal Phone, which has a unique E-Ink display and a physical QWERTY keyboard reminiscent of Blackberry devices, has started shipping after meeting its crowdfunding target. This smartphone was first revealed last year and successfully raised over $600,000 via an Indiegogo campaign. For those who didn’t back the project during its original funding period, it’s still available for purchase at $399, with new orders set to ship in March.
Unique Display Features
This smartphone distinguishes itself in a world where large, vibrant OLED screens are the norm. Rather than appealing to users who enjoy multimedia, it aims to provide a simple and distraction-free user experience, featuring a 4.3-inch black-and-white E-Ink touchscreen. Unlike standard smartphone displays, E-Ink screens only use power during refreshes, making them great for long battery life.
Operating System and App Performance
The Minimal Phone operates on a tailored version of Android 14, giving users access to the Google Play Store to install third-party apps. However, due to the characteristics of E-Ink technology, some applications may not work as well as they would on a regular screen.
Power and Storage Specs
Equipped with a MediaTek G99 processor, the Minimal Phone has 6GB of RAM alongside 128GB of internal storage. There’s also a microSD card slot for additional storage needs. The device includes a full QWERTY keyboard that enhances its attractiveness for users who like the feel of physical keys while typing. The keyboard features 35 keys, a customizable hotkey, and a 0.15mm key travel for a satisfying typing experience.
Camera and Battery Life
When it comes to photography, the phone offers a 16MP rear camera with an LED flash, along with an optional 5MP front camera. It is powered by a 3,000mAh battery that, thanks to the energy-efficient E-Ink display, can last for several days with just one charge. The phone supports 18W wired fast charging as well as 15W wireless charging.
Connectivity and Design Options
The Minimal Phone is available in three colors: Pebble, Onyx, and Fusion. It has a fingerprint sensor built into the power button, a 3.5mm headphone jack, and a USB-C charging port. In terms of connectivity, it supports 4G LTE, WiFi 5, Bluetooth 5.2, and NFC, although it does not offer 5G compatibility.
Tags: E Ink Display, Minimal Phone, QWERTY keyboard
February 1, 2025
Colorsoft Teardown: Scratches on Kindle Display Under Microscope
The Amazon Kindle Colorsoft is a new e-reader priced at $279 on Amazon. This device is designed to be waterproof and boasts a battery life of up to eight weeks. It features a 7-inch e-ink display that can show colors, a first for Kindle devices, which previously only displayed grayscale. Popular YouTuber JerryRigEverything recently reviewed this latest Kindle in an in-depth teardown video that you can watch below. In the video, he examines the subpixels, which come in red, green, and blue, using a microscope.
Subpixel Structure
The subpixels appear as squares rather than the typical strips found in LCD screens. The colored e-ink screen uses a color filter that assigns a specific hue to each subpixel. This innovation causes the pixel density to decrease from 300 PPI to 150 PPI when displaying colored images. The microscope revealed that the surface of the Kindle Colorsoft is rougher than that of an Apple iPad Pro, which has a nano-texture glass that minimizes reflections.
Material and Durability Concerns
Notably, the display surface is made of plastic instead of glass. This means it can get scratched when it comes into contact with something that rates a 3 on the Mohs hardness scale. Because of this, using a screen protector is advisable. Additionally, the overall body of the Kindle Colorsoft is plastic and doesn’t offer much resistance to scratches. On the plus side, the Kindle Colorsoft passed JerryRig’s bend test with good results. Inside, the device shows significant empty space, indicating that there could have been room for a larger battery, yet it still maintains the claimed eight-week battery life under regular use.
Repairability and Conclusion
The conclusion of the video is particularly intriguing as JerryRigEverything removes the color filter from the black and white e-ink panel, showing how the colors originate from the extra panel layer. Interestingly, some repairs seem to be straightforward due to the back being attached with clips, allowing easy access to replace the battery, for instance.
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Tags: Amazon Kindle Colorsoft, E Ink Display, JerryRigEverything
January 17, 2025
LG V50 ThinQ Transformed into InkReader Duo E-Reader
Before LG decided to end its smartphone venture, it introduced some fascinating devices. One such device was the LG V50 ThinQ Dual Screen, which came with a case featuring a second screen, offering a fresh perspective on dual-screen technology. This innovative phone seems to have inspired the creation of the inkReader Duo, a new concept for an e-reader.
Unique Design Features
Similar to the LG V50 ThinQ Dual Screen and its successor, the LG G8X ThinQ Dual Screen, the inkReader Duo comes with a case that includes a display, but this time it’s an E Ink screen. The main device resembles a smartphone, much like the BOOX Palma 2, which is priced at $279.99 on Amazon.
Specifications and Functionality
Created by Mechanical Pixel, the inkReader Duo features a 6.2-inch Carta 1300 E Ink display with a resolution of 300 ppi. The case’s screen is also 6.2 inches and matches the main display type, connecting to the main device using pogo pins. When the e-reader is not in use, it can show a static image or a note.
The case includes a 360-degree hinge, allowing it to fold back completely. While it supports a stylus, it’s uncertain whether it functions on both screens. However, users will likely be able to read on one screen while jotting down notes on the other.
Potential Challenges Ahead
Creating the inkReader Duo should not present many challenges, but developing software that optimally utilizes the second screen may be a tougher task. While Amazon’s Kindle software may not be capable of achieving this, an Android-based custom operating system could potentially make it work.
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Tags: E Ink Display, inkReader Duo, LG V50 ThinQ