# Screen

## System definition

A screen is an electronic device designed to render visual content, by displaying electronic images. It is composed of pixels, which light up to create the image.
### What is it used for?

* Render visual content, by displaying electronic images
* Used for laptop, tablet, smartphone, computer monitor, television

### Are they different types and technologies?

Technologies:

* CRT = Cathode Ray Tube
* LCD = Liquid Crystal Displays
* LED = Light-Emitting Diode
* OLED = Organic Light-Emitting Diode

Can be touch-sensitive or not


## Life Cycle

### Manufacturing

* Materials
* Processes
* Main manufacturers, location

TBC

### Distribution

TBC

### End of life

TBC


## Environmental footprint

### What are the main environmental impacts associated to the materials?

TBC

### What are the main environmental impacts associated to the manufacturing processes?

TBC

### What are the potential parameters affecting environmental impact?

* screen technology
* screen format: the ratio between the width and the height of the display
* diagonal lenght

### Already existing data? (dataset, parametric model, paper, etc.)

Ecoinvent dataset, Negaoctet dataset, draft of parametric in Léa Bitard's Master thesis (Resilio)


##  Next steps

### What do we know we don't know?

* The process technologies and yields must have improved in the past years.

### What are the identified challenges?

* Almost no data at all

### What paths/ideas should be explored?