Gimana Cara Kerja Touchscreen Sebenernya???

Summary

This video explores the fascinating technology behind touchscreens, starting with how they work on cellphones. It explains the layered structure of a touchscreen and the science behind how electricity flows through our fingers to detect touch. The video also covers alternative touchscreen designs like pressure-sensitive screens and touches on the surprising use of sausages to interact with screens in winter. Additionally, it introduces cutting-edge developments in touchscreen technology for the skin, allowing people to control devices by tapping their bodies. It's an intriguing look at how we interact with technology in unexpected ways.

Takeaways

• 😀 Touchscreens allow us to perform various tasks like watching videos, sending messages, and ordering food with just a tap.
• 😀 The structure of a touchscreen involves multiple layers, including a display layer, a protective layer, and a middle layer with electric conductors.
• 😀 The middle layer of a touchscreen contains super thin wires arranged in a grid pattern that can detect electrical interaction from fingers.
• 😀 Our bodies can conduct electricity because of water and particles within us, which is why touchscreens respond to our fingers.
• 😀 Gloves block the electrical current, which is why touchscreen devices won't work when wearing gloves.
• 😀 In Korea, people once used sausages to interact with touchscreen phones while wearing gloves, as sausages, like fingers, can conduct electricity.
• 😀 Some touchscreens, like those found at ATMs and kiosks, require more pressure to work because they are made with resistive layers that generate current when pressed.
• 😀 Resistive touchscreens differ from capacitive ones, which are used in smartphones and respond to slight touch interactions.
• 😀 Scientists are working on technology that will enable touchscreens to work on human skin by detecting vibrations when touched.
• 😀 In the future, it may be possible to interact with devices by tapping your skin, such as making calls or opening apps by tapping your arm or finger.

Q & A

What are the key layers that make up a touch screen?

A touch screen consists of several layers: the bottom layer for displaying the image, the top layer for protection, and the middle layer containing thin wires that carry electric current and form small squares.

How does a touch screen detect a touch?

When a conductive object, like a finger, touches the screen, the electric current in the middle layer interacts with the system, which then determines the location of the touch.

Why can electricity flow through our fingers?

Electricity can flow through our fingers because our bodies contain water with particles that can carry electric current, allowing electricity to pass through.

Why can't we use touch screens with gloves on?

Gloves prevent electricity from passing through to the screen because they don't allow the current to flow, unlike bare skin.

What unusual method did people in Korea use to interact with touch screens in the winter?

In Korea, people used sausages to touch their cellphone screens during winter, as sausages contain ingredients that can conduct electricity, allowing users to interact with the screens while wearing gloves.

How do large touch screens in places like restaurants and ATMs differ from cellphone screens?

Large touch screens use a different technology where two thin layers, one of flexible plastic and one of glass, are coated with an electrically conductive fluid. Pressure from a touch creates an electric current that is detected by the system.

Why do we have to press harder on large touch screens?

We need to apply more pressure to large touch screens because they use a pressure-based system, unlike cellphones, which use capacitive touch technology.

Can anything other than fingers be used to interact with these large touch screens?

Yes, large touch screens can be pressed using anything that conducts electricity, not just fingers, although it is important to avoid punching the screen as it could break.

What is the future potential of touch screen technology on human skin?

In the future, scientists are developing touch screen technology that can be installed on human skin. By using a chip that detects vibration patterns, people may be able to interact with devices by tapping their skin in various areas of the body, like a wrist or a finger.

Why should you avoid using your cellphone while washing your hands?

You should avoid using your cellphone while washing your hands because the water could cause unintended touches on the screen, leading to strange or unwanted actions.