At first glance, it looks like a glass pane in a sliding door, but with a push of a button or wave of a hand a television screen instantly appears.
Panasonic has been improving its transparent television since unveiling it at the Consumer Electronics Show, with the goal of making it completely invisible.
The firm swapped out the LED screen for an OLED and now when in transparent mode, the set is completely undetectable – allowing users to clearly see through it. An OLED screen uses self-lighting pixels, while an LED uses a backlight to illuminate its pixels.
The Japanese electronic maker’s innovation was first seen at the Consumer Electronics Show (CES) this past January in Las Vegas Nevada.
HOW TRANSPARENT SCREENS WORK
- OLED (organic light-emitting diode) screens produce light when electricity is applied through them.
- They are used to create digital displays in devices such as TV screens, computer monitors, portable systems, handheld game consoles and smartphones.
- This material does not need a backlight and filters, unlike LCD displays, which makes them more efficient, easier to make and much thinner.
- It also means that they have the option to become transparent.
- An OLED panel is made up of a layer of plastic sandwiched between two electrodes – the cathode and anode – all deposited on a glass substrate.
- When electricity is fed through the plastic, it emits light on its own, which is why no backlight is needed.
- As the name suggests, transparent OLED screens are made up only of transparent components (cathode, anode and substrate).
- When the panel is on, the self-illuminating pixels produce a picture, and when the screen is off, the components go back to being transparent.
- OLEDs can also be designed to be more flexible and even rollable.