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Indo-French Scientists Develop Super Touch Sensitive Material that has the Ability to Mimic Human Touch

The newly developed material enhances response rate by thousand times from existing materials and can store more energy in less space, for applications like mobile handsets, specially new-age smartphones

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Indo-French scientists develop super touch sensitive material that has the ability to mimic human touch. Wikimedia
  • A team of Indian and French scientists have developed a touch sensitive material that enhances response rate by thousand times from existing materials
  • The material is made of Quantum Dots (QD) with liquid crystals; QDs are very small semiconductor particles, only several nanometres in size
  • The team controlled the assembly of quantum particles in liquid crystal matrix for this specific purpose and by changing the concentration of QDs

New Delhi, August 1, 2017: A super touch sensitive material has been developed by a team of Indian and French scientists. This material has the ability to enhance response rate by thousand times from existing materials. A super touch sensitive material has been developed by a team of Indian and French scientists. This material has the ability to enhance response rate by thousand times from existing materials.

The material is made of Quantum Dots (QD) with liquid crystals. QDs are tiny semiconductor particles which are only several nanometers in size. This material has its applications in semiconducting devices with pico-ampere sensitivity and it is able to mimic any biological system.

This system can also store electrical energy more efficiently.

For this specific purpose, the team controlled the assembly of quantum particles in liquid crystal matrix by altering the concentration of QDs. Professor Sandeep Kumar of Raman Research Institute, Bengaluru was responsible for preparing the QDs that were used in this project.

In a conversation with Indian Science Journal, Dr Dharmendra Pratap Singh, the corresponding author of the study and a post doctoral researcher at University of the Littoral Opal Coast in France, said, “This invention opens up development of semiconducting energy storage devices.We are planning to do some more experiments to make a battery for pocket devices using this material by next year.”

Dr. Singh also mentioned that the advantage of the new touch sensitive material is its ability to store more energy in less space, that can be very-utilised for applications like mobile handset, especially new age smartphones.

According to ANI report, the research details have been published in the latest edition of Journal of Physics D: Applied Physics.

Currently, touch sensitive materials are made of liquid crystals on Indium Tin Oxide (ITO) in IPS mode (in-plane switching mode), which means that a device captures traffic for the sensor and then forwards a copy for analysis to the sensor.

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Scientists have been trying for some time now to develop organic light emitting diode (OLED) devices which could possibly help in reducing the operating voltage significantly while improving the efficiency and light output.

The five most common types of touch screen technology are :  5-Wire Resistive, Surface Capacitive, ProjectedCapacitive, SAW (Surface Acoustic Wave), and Infrared. The most widely used touch technology today is 5-Wire Resistive Touch.

Resistive touch screens were invented in 1970. A resistive screen basically consists of a number of layers. It functions like this: when the screen is pressed, the mechanism pushes the outer layer onto the next layer, the technology is programmed to sense that pressure being applied and register input.

Resistive touch screens are widely versatile, users can use them with a finger, a fingernail, a stylus or any other object. They are very user-friendly as well.

Capacitive touch screen – a control display that uses the conductive touch of a human finger or a specialized device for input, was designed first but they were eclipsed in the early years of touch-screen technology by the invention of resistive touch screens. A fun fact, American inventor Dr G. Samuel Hurst developed resistive touch screens almost accidentally.

– prepared by Durba Mandal of NewsGram. Twitter @dubumerang


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OPPO Brings A9 2020: Mid-Segment Phone with Decent Performance

An upgrade of OPPO A9, the A9 2020 also features a 3D gradient design.

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OPPO
After launching a highly successful Reno 2 series, OPPO has brought A9 2020 to bring some competition in the mid-segment market in India (Representational Image). Pixabay

After launching a highly successful Reno 2 series, Chinese handset maker OPPO has brought A9 2020 to bring some competition in the mid-segment market in India.

The Oppo A9 2020 comes with quad-camera setup with 5,000mAh battery as its USP. The device is available in two variants — 4GB RAM+128GB ROM priced at Rs 16,990 and 8GB RAM+128GB ROM at Rs 19,990 in two colours, Marine Green and Space Purple.

An upgrade of Oppo A9, the A9 2020 also features a 3D gradient design.

We tested 8GB RAM+128GB device (Rs 19,990) in Space Purple. Let’s see how it fares.

In terms of design, the device scores decent marks. The back looks attractive with glass-like finish which gives it an aesthetic feel.

The quad rear camera is placed vertically alongside the LED flash, which adds extra charm.

The fingerprint sensor, placed at the back, was quick. The OPPO logo is placed vertically in centre.

The left edge of the phone hosts the dual-SIM card tray and the volume buttons and the SIM tray hosts a dedicated space for Micro-SD card which helps users expand in-built 8GB memory up to 256GB.

OPPO
The new OPPO device is an ideal choice for those who seek exceptional performance. Pixabay

The volume rockers are at the left and power button at right, quite easy to operate. The lower edge of the phone houses speakers, Type C charging slot with fast-charging support and an audio jack input.

The smartphone features 6.53-inch Full HD+ display with a resolution of 1,600×720. The device’s screen is protected with Corning Gorilla Glass 5. The front of the device has dew-drop notch design that looks good.

The automatic brightness feature on-screen worked fine both indoors and outdoors.

The quad rear camera (48MP+8MP+2MP+2MP) is placed at the upper centre vertically alongside the LED flash.

The rear camera has basic panorama, HDR and video modes, along with some interesting image-enhancing features like AI-filters, ultra-wide mode, slow motion and time-lapse photography.

The camera produced some good snaps in daylight. However, it didn’t work good in low-light conditions.

The 16MP front camera features AI beautification and portrait mode, that gave sharp and good selfies.

The device has fingerprint unlock sensor as well as face unlock feature and both functioned smoothly.

The Dolby Atmos dual stereo speakers worked well.

OPPO
The camera in new OPPO Device produced some good snaps in daylight. However, it didn’t work good in low-light conditions (Representational Image). Pixabay

Powered by Qualcomm Snapdragon 665 processor, the device runs Android 9 Pie-based ColorOS 6.0.1.

Snapdragon 665 provides faster performance while simultaneously lowering power consumption by 20 per cent.

The 5,000mAh battery kept the juice for almost a day.

However, despite having the “gaming boost 2.0” software, the device experienced lags while playing.

The phone competes well against Realme 5 Pro and Vivo Z1X at this price point.

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Conclusion: With decent looks, quad-rear camera and big battery, the device is an ideal choice for those who seek good rear camera, better storage and a premium look. (IANS)