Paperlike display running for 12 years and still going strong

Alexander Turcic · 06-08-2006, 02:36 PM

Have you ever wondered how long a bistable display could retain its image? Keith Bellamy of Kent Displays was present at the SID 2006 conference in San Francisco where he demonstrated a monochrome display panel based on Kent's Cholesteric LCD (ChLCD) technology that has not been refreshed for 12 years. Most fascinating, the display shows no sign of image burn-in, ghosting, or other artifacts that would have been common with other display technologies after such a long time [Edit: As correctly pointed out by astfgl, from this example alone we cannot tell if that is indeed true, however, it's a claim made by the manufacturer which I like to believe it.]

[via Dvorak Uncensored]

astfgl · 06-08-2006, 07:14 PM

This may be a silly question, but if it hasn't been refreshed for twelve years, how does anyone know if there's ghosting?

Alexander Turcic · 06-08-2006, 07:24 PM

Quote:

Originally Posted by astfgl

This may be a silly question, but if it hasn't been refreshed for twelve years, how does anyone know if there's ghosting?

You're right, from this example one cannot know. It's one of the claims by those who develop cholesteric lcds, and considering how well the display has performed in twelve years, I'd like to believe it.

Good catch!

Snappy! · 06-08-2006, 11:25 PM

The only way is to refresh the display with a different image and see if it has ghosting and/or burn-in!

Or wait, what if ... just what if they had like 2 identical set and after 12 years, one of them is refreshed, and hence you know that it does not have ghosting and/or image burn-in, while the one that is not refreshed shows that it retains its contents perpetually.

Man, they should get me to device demo plans and Proof-Of-Concepts.

06-08-2006, 02:36 PM	#1
Alexander Turcic Fully Converged Posts: 18,175 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	Paperlike display running for 12 years and still going strong Have you ever wondered how long a bistable display could retain its image? Keith Bellamy of Kent Displays was present at the SID 2006 conference in San Francisco where he demonstrated a monochrome display panel based on Kent's Cholesteric LCD (ChLCD) technology that has not been refreshed for 12 years. Most fascinating, the display shows no sign of image burn-in, ghosting, or other artifacts that would have been common with other display technologies after such a long time [Edit: As correctly pointed out by astfgl, from this example alone we cannot tell if that is indeed true, however, it's a claim made by the manufacturer which I like to believe it.] [via Dvorak Uncensored]

06-08-2006, 11:25 PM	#4
Snappy! Addict Posts: 260 Karma: 4256 Join Date: Feb 2006 Device: SHARP Zaurus C1000	The only way is to refresh the display with a different image and see if it has ghosting and/or burn-in! Or wait, what if ... just what if they had like 2 identical set and after 12 years, one of them is refreshed, and hence you know that it does not have ghosting and/or image burn-in, while the one that is not refreshed shows that it retains its contents perpetually. Man, they should get me to device demo plans and Proof-Of-Concepts. Last edited by Snappy!; 06-08-2006 at 11:27 PM. Reason: typo

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06-08-2006, 07:14 PM	#2
astfgl Member Posts: 24 Karma: 10 Join Date: Jun 2006 Location: Townsville, AU Device: Iliad & REB1100	This may be a silly question, but if it hasn't been refreshed for twelve years, how does anyone know if there's ghosting?

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