CSTN stands for "color super-twist nematic" a form of passive matrix LCD (Liquid Crystal Display) for electronic display screens.
Originally developed by Sharp Electronics in the early 1990s, the first CSTN displays had a poor response time and as a consequence suffered from ghosting (where lit pixels in a row can affect the unlit pixels). More recent advances in CSTN have made the display quality more on a par with active matrix counterparts, despite being much cheaper to produce.
Unlike TFT, CSTN is based on a passive matrix, which is less expensive to produce.
The original CSTN displays developed in the early 90's suffered from slow response times and ghosting (where lit pixels in a row can affect the unlit pixels).
Recent advances in the technology, however, have made CSTN a viable alternative to active matrix displays.
Consequently, HPA is being used by a number of computer manufacturers for their low-end notebook computers.
CSTN : Short for color super-twist nematic, an LCD technology developed by Sharp Electronics Corporation.
However, the high cost of producing active-matrix displays, and new technologies such as DSTN, CSTN and HPA that improve passive-matrix displays, have cause passive-matrix displays to make a surprising comeback.
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