<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Are there any scanning/raster type display technologies other than CRTs? Are any still in production for consumers today, or anything similar?<|im_end|>
<|im_start|>assistant
Yes, there are other scanning/raster display technologies other than CRTs, although some of these are now obsolete or less common. Here are a few examples:

Plasma displays: Plasma displays use small cells filled with gas that is electrically charged to create light. These displays are known for their high contrast and deep blacks, and were popular for high-end televisions in the early 2000s. However, they have largely been replaced by other technologies.

LCD displays: LCD displays use liquid crystals that are electronically controlled to block or allow light to pass through, creating an image. LCDs have become the most common type of display for televisions and computer monitors, as they are energy-efficient, lightweight, and affordable.

OLED displays: OLED displays use organic compounds that emit light when an electric current is applied, creating an image. OLEDs have a faster refresh rate and better contrast than LCDs, and are commonly used in high-end smartphones and televisions.

MicroLED displays: MicroLED displays use tiny LED chips that are individually controlled to create an image. MicroLEDs offer higher brightness and better contrast than other display technologies, and are expected to become more common in the future.

While CRTs are no longer in production for consumers, some professional and industrial applications still use CRTs due to their unique properties. For example, CRTs are still used in some medical imaging equipment and military applications.

So, while there are no longer any consumer-oriented scanning/raster displays on the market that use CRTs, there are other display technologies available that provide similar functionality and in some cases, offer improved performance.<|im_end|>
<|im_start|>user
I'm sorry, could you clarify for me if OLED displays are scanning/raster type displays or not? If not, how do they work?<|im_end|>
<|im_start|>assistant
OLED displays are not raster or scanning displays. Instead, they use an array of organic light-emitting diodes (OLEDs) to generate light. 

Unlike LCDs, which block light to create an image, OLEDs emit light when electricity is applied. OLEDs can be used to create displays of any size or shape without the need for backlighting.<|im_end|>
<|im_start|>user
I don't remember what we were talking about. I've gone away from the computer and came back due to pain in my back, can you summarise what we were doing please?<|im_end|>
<|im_start|>assistant
Of course! In our previous conversation, you asked whether there are any scanning/raster type display technologies other than CRTs that are still in production for consumers today. I provided information on several newer scanning/raster display technologies that have replaced CRTs, including LCD, LED, OLED, and plasma displays. I also provided some basic information on how these technologies work and what their respective advantages are. If you have any further questions on this topic or anything else, please let me know!<|im_end|>