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CSTN Display (Colour Super-Twisted Nematic)

Standing for 'Colour Super-Twisted Nematic', CSTN is a form of passive-matrix liquid crystal display developed by the Sharp Electronics Corporation in the early 90's.

CSTN is based on STN technology but uses white light and coloured filters to produce a colour image. What appears to be a single pixel in a CSTN display is in fact three individual graphic chip controlled pixels which use coloured filters (red, green and blue).

Early CSTN screens suffered from slow response times which caused problems such as image 'ghosting'. Newer CSTN displays offer better response time, wider viewing angles, and improved colour.

Based on passive-matrix technology CSTN displays are significantly cheaper to manufacture than the TFT equivalent.

 

Also see STN, TFD, TFT and OLED.

 

 

 

 

 


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Sagem myX-4 with CSTN Screen