Prajaa Sakshi Newspaper is an Indian daily newspaper based in Veerbhadra Nagar, Sangareddy, Telangana. Prajaa Sakshi Epaper covers all the latest news in the Telugu language. This newspaper was published in one Language. And you can also get the latest news, exclusives, sports, celebrities, showbiz, politics, business, and lifestyle from Prajaa Sakshi Epaper.
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Prajaa Sakshi Epaper Overview
- Owner: VEERANNAGARI ANJI REDDY
- Editions: Hyderabad and Adilabad
- Founded: 1981
- Language: Telugu
- Headquarters: Veerbhadra Nagar, Sangareddy, Telangana
- Official Website: http://prajaasakshi.com/
- Frequency: Daily Epaper
- Country: India
- Registration: Not Required
- Price: Free
About Prajaa Sakshi Epaper
Prajaa Sakshi is a recently launched Telugu daily newspaper, published simultaneously from Hyderabad and Adilabad. This new Telangana daily epaper primarily focuses on providing comprehensive coverage of Telangana news, AP News, National, and International news. The newspaper is dedicated to highlighting current affairs and events from Telangana and its districts.
Prajaa Sakshi Epaper Url
Epaper URL: Prajaa Sakshi Epaper
What is an e-paper?
E-paper, short for electronic paper, is a display technology that mimics the appearance of traditional ink on paper. It is designed to provide a reading experience similar to that of printed materials, such as newspapers and books. The technology is based on electrophoretic or electrowetting principles, which use electric charges to move pigment particles or colored oils within microcapsules to create images and text.
Here are some key characteristics and features of e-paper:
Low Power Consumption: One of the most significant advantages of e-paper is its low power consumption. Unlike traditional backlit displays like LCD or OLED, e-paper only requires power when the content on the screen changes. Once an image or text is displayed, it doesn’t need constant power to maintain its appearance, making it ideal for devices with long battery life, such as e-readers.
Reflective Display: The E-paper reflects light just like regular paper. It doesn’t emit light, so it relies on ambient light to be visible. This property makes it easy to read even in bright outdoor conditions, similar to reading a printed book or newspaper.
High Contrast and Wide Viewing Angle: E-paper displays typically offer high contrast, making the text and images easily readable in various lighting conditions. Moreover, the viewing angle is wide, ensuring that the content can be seen clearly from different orientations.
Flexible and Thin: The E-paper is often flexible and can be made very thin, making it suitable for use in lightweight and portable devices.
Slow Refresh Rate: A notable drawback of e-paper is its slow refresh rate. Compared to traditional LCD or OLED screens, e-paper technology takes a longer time to update the display content. This makes it unsuitable for video or interactive applications but well-suited for static content like ebooks or digital signage.
E-paper is commonly used in e-readers, electronic shelf labels, smartwatches, and other applications where low power consumption and readability in various lighting conditions are essential. The technology has continued to evolve, and newer iterations have aimed to address some of its limitations, such as faster refresh rates and improved color capabilities, although they may not yet match the full capabilities of traditional backlit displays.
How does e-paper work?
E-paper works based on two primary technologies: electrophoretic and electrowetting. Both technologies use electric fields to control the position of pigmented particles or colored oils within microcapsules to create images and text. These technologies enable the display to mimic the appearance of ink on paper, providing a paper-like reading experience.
1. Electrophoretic E-paper:
Electrophoretic e-paper, also known as electrophoretic ink or E Ink, is the most widely used e-paper technology. It consists of tiny microcapsules containing positively charged white particles and negatively charged black particles suspended in a clear fluid.
Microcapsule Structure: Each microcapsule is coated with a transparent electrode on one side and is filled with the colored particles in the fluid. These microcapsules are then sandwiched between two layers of transparent electrodes, which are patterned to form the pixels of the display.
Applying an Electric Field: When an electric field is applied to the electrodes, the charged particles move either to the top or the bottom of the microcapsule, depending on the polarity of the electric field. If a positive charge is applied to the top electrode, the black particles move to the top, making that pixel appear black. Conversely, if a negative charge is applied, the white particles move to the top, making the pixel appear white.
Creating Images: By applying appropriate electric fields to the electrodes, the display controller can control which pixels appear black and which ones appear white, thereby forming text and images on the screen.
Low Power Consumption: Once an image is formed, it remains visible without the need for continuous power, contributing to the low power consumption of e-paper devices.
2. Electrowetting E-paper:
Electrowetting is another e-paper technology that operates on the principle of manipulating colored oils instead of charged particles.
Microfluidic Structure: Electrowetting e-paper consists of microfluidic cells filled with colored oils and water-repellent (hydrophobic) and water-attracting (hydrophilic) coatings on a solid substrate.
Changing Wetting Properties: When a voltage is applied to a specific cell, the electric field alters the wetting properties of the solid surface. By adjusting the voltage, the contact angle of the oil with the surface can be changed.
Displaying Content: By selectively applying voltage to the cells, the contact angle of the colored oils changes, causing them to spread or retract. This controlled movement of the oils forms the display’s content.
Flexible and Colorful: Electrowetting technology offers the advantage of being flexible and has the potential to display color, making it suitable for applications requiring more vibrant content.
Both electrophoretic and electrowetting e-paper technologies provide low power consumption, good readability in various lighting conditions, and a paper-like appearance, making them well-suited for e-readers and other applications where energy efficiency and outdoor visibility are crucial.
Types of E-paper
Electrophoretic E-paper (E Ink):
This is the most common and widely used e-paper technology. It uses positively charged white particles and negatively charged black particles suspended in a clear fluid within microcapsules.When an electric field is applied to the microcapsules, the charged particles move, causing the pixel to appear either black or white. E Ink displays are known for their low power consumption, high contrast, and excellent readability in various lighting conditions.
Electrowetting e-paper technology utilizes colored oils and a solid substrate with hydrophobic and hydrophilic coatings. By applying an electric field to a specific microfluidic cell, the contact angle of the colored oils can be changed, causing them to spread or retract and forming the display’s content. Electrowetting displays have the potential to display color and can offer faster response times compared to electrophoretic e-paper.
Electrofluidic E-paper (CLEARink):
Electrofluidic e-paper technology is similar to electrowetting but uses a different mechanism for manipulating colored particles or fluids. One of the notable companies using this technology is CLEARink. They use a switchable bi-stable electrowetting mechanism that allows the particles to move between two stable states, producing a pixel with two distinct colors (e.g., black and white) without the need for a constant power supply. The technology aims to provide improved color capabilities, video capabilities, and a higher resolution compared to traditional electrophoretic e-paper.
Advantages of using e-paper
Using e-paper offers numerous advantages, making it a popular choice for various applications. Here are some key advantages of using e-paper:
- Paper-like Reading Experience: E-paper mimics the appearance of ink on paper, providing a reading experience similar to that of printed materials. It offers high contrast and a wide viewing angle, making it easy on the eyes and comfortable for extended reading sessions.
- Low Power Consumption: E-paper is highly energy-efficient. It only requires power during content updates, and once an image or text is displayed, it doesn’t need constant power to maintain its appearance. This characteristic significantly extends the battery life of devices that use e-paper displays, such as e-readers and electronic shelf labels.
- Readability in Various Lighting Conditions: E-paper displays are reflective and do not emit light, just like traditional paper. This feature allows e-paper to be easily readable in bright sunlight, unlike backlit displays (e.g., LCD or OLED), which can be challenging to read outdoors.
- Flexibility and Thinness: E-paper technology can be made flexible and thin, enabling its integration into lightweight and portable devices. This flexibility opens up possibilities for innovative form factors and wearable applications.
- Bi-stable Nature: Many e-paper technologies are bi-stable, meaning that they can hold an image without requiring continuous power. This characteristic is particularly useful for static content, like text and images in e-books, signs, or labels, as it does not drain power once the content is displayed.
- Environmental Friendliness: E-paper can contribute to reduced paper waste since it offers an electronic alternative to printed materials. It can be used in applications such as digital signage or e-readers, where content can be updated electronically without the need for paper-based replacements.
- Good Color Reproduction: Some e-paper technologies, such as advanced electrowetting and electro fluidic displays, have improved color capabilities, offering better color reproduction compared to early e-paper displays.
- No Screen Flickering: Unlike some traditional displays (e.g., CRT monitors), e-paper does not suffer from screen flickering, which can cause eye strain and discomfort.
- Outdoor Advertising and Signage: E-paper’s readability in bright sunlight makes it suitable for outdoor advertising and signage applications, where the content needs to be visible in various lighting conditions.
- Long Lifetime: E-paper displays typically have a longer lifetime than traditional displays, as they are less susceptible to issues like burn-in (common in OLED displays) and other forms of degradation over time.
Overall, the e-paper’s unique combination of low power consumption, paper-like readability, and flexibility makes it an attractive option for devices and applications that prioritize long battery life, easy reading, and portability.If I’ve left important something out in this post, feedback is appreciated and welcome on the Make A Public List. Feel free to comment below.