4.9 inch E-ink screen

E-Ink Display (E-Ink) is a flat display technology that is specialized for displaying content. Unlike traditional LCD screens, E-Ink displays use ink particles to display images and text. These ink particles are controlled by an electric field that creates a clear black and white image on the screen.

E-paper ink screens work by utilizing the charged nature of the ink particles. Ink particles consist of tiny black and white particles that are suspended in a liquid. When an electric field is applied to the screen, the ink particles move according to the polarity of the electric field, creating a black and white image. Once the image display is complete, the ink particles remain in the position they are in and do not need to continue to consume energy to maintain the display content, resulting in very low power consumption.

Advantages of e-paper ink screens include:

The reading experience is similar to paper books and does not cause eye fatigue.

Wide viewing angle, the screen content can be viewed from different angles without distortion.

Low power consumption, consuming energy only when the display needs to be updated.

High contrast ratio, clear and sharp display.

Outdoor readability, clear display even under strong sunlight.

E-paper ink screens are widely used in e-book readers, smartwatches, labels, industrial control panels, etc., aiming to provide high-quality displays and a comfortable reading experience.

4.9 inch E-ink screen Working Principle

Electronic ink is actually a new material, it is chemistry, physics and electronics multidisciplinary development of the product, this material can be printed on the surface of any material to display text or image information. As electronic ink is a liquid material, so it is figuratively called electronic ink "water". Suspended in this liquid material are hundreds of microcapsules about the same size as the diameter of a human hair, each composed of positively and negatively charged particles. As long as a certain process can be taken to this electronic ink printed on glass, fiber or even paper media surface, of course, these carriers carrying electronic ink also need to go through a special treatment, in which each pixel for each pixel construction of a simple pixel control circuits, so that the electronic ink to display the images and text we need.

When a negative electric field is applied to both ends of the microcapsule, white particles with a positive charge move to the negative side of the electric field under the action of the electric field, while at the same time, the negatively charged particles move to the bottom of the microcapsule to "hide", and then the surface will appear white. When a positive electric field is applied to both sides of an adjacent microcapsule, black particles will move to the top of the microcapsule under the action of the electric field, and the surface will appear black. E-ink technology allows any surface to become a display, which allows us to go completely outside the boundaries of the original concept of display devices, and slowly penetrate into every corner of our living space.

4.9 inch E-ink screen Interface definitions:

Use environment

Work: 0-50℃

Storage:-25-70℃

Features of e-ink displays:

Paper-like reading experience: E-ink displays mimic the appearance of ink on paper, providing a comfortable and eye-friendly reading experience.
Low power consumption: E-ink displays consume very little power as they only require energy when updating the display, resulting in extended battery life for devices.
Wide viewing angle: E-ink displays offer a wide viewing angle, allowing users to view content from various angles without experiencing significant distortion.
High contrast: E-ink displays provide high contrast ratios, ensuring clear and sharp text and images.
Outdoor readability: E-ink displays offer excellent visibility even in bright outdoor environments, as they reflect ambient light rather than emitting their own light.
Applications of e-ink displays:

E-readers: E-ink displays are extensively used in e-readers, providing a comfortable reading experience similar to that of printed books.
Digital signage: E-ink displays are utilized in digital signage applications, such as electronic shelf labels, transportation signs, and information boards, due to their low power consumption and clear visibility.
Wearable devices: E-ink displays find applications in wearable devices, such as smartwatches and fitness trackers, offering power-efficient displays for time, notifications, and health data.
Industrial instruments: E-ink displays are used in industrial instruments and control panels, providing clear and easily readable information for monitoring and control purposes.
Internet of Things (IoT) devices: E-ink displays are suitable for IoT devices, enabling them to display simple information, status updates, and notifications in a power-efficient manner.
Please note that the specific features and applications of e-ink displays may vary depending on the product and manufacturer.

4.9 inch ink screen

Electronic Paper Display
E-ink screen

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