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cedrik
Joined: 16 Oct 2011
Posts: 2008
Location: Rom�nia
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 Posted: Tue Feb 12, 2019 4:19 pm Post subject: Z80 8-Bit CPU Formed on Glass Substrate ? |
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I found this info:
"Sharp Corporation and Semiconductor Energy Laboratory Co., Ltd. have successfully integrated an 8-bit Z80 CPU onto a glass substrate designed for LCD displays, based on their jointly developed CG- Silicon technology"
Did it make it to the mass production? anyone knows anything about it?
Thanx
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cuttingedgecs
Joined: 08 Oct 2017
Posts: 1764
Location: Australia
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| Posted: Tue Feb 12, 2019 5:35 pm Post subject: |
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| I know Sharp made Continuous Grain Silicon TFT panels for a while there. The advantage being they could integrate some of the control electronics into the edges of the glass panel. There isn't any real benefit for using this process for discrete chips like this Z80, so I don't see this being used in this way IRL. |
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yy2013
Joined: 12 Sep 2009
Posts: 739
Location: Nagoya, Japan
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| Posted: Tue Feb 12, 2019 6:23 pm Post subject: |
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It is a very old news dated October 2002. It's a kind of demonstration and I know of no developments after that.
Recently, semiconductor devices formed on a flexible organic film attracts more attention. They can be used for medical puposes (bio-implanted electronics) and as wearable electronics devices. |
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cuttingedgecs
Joined: 08 Oct 2017
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Location: Australia
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| Posted: Tue Feb 12, 2019 7:48 pm Post subject: |
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| yy2013 wrote: | It's a kind of demonstration and I know of no developments after that.
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CG-Silicon did make it into mass production in a number of phones and PDAs from about 2003-2006, and many of those screens had embedded screen driving electronics (possibly including a basic CPU - 186s are often part of an LCDs driving electricals) . However I don't think they ever embedded anything as involved as the main CPU in a commercial product, or developed any discrete CPUs with the technology. PDAs and mobile phones at that time predominantly used 400MHz Xscale CPUs - something that would be far too big and power hungry when implemented on CGS. Eventually CGS died off as other panel technologies (mostly IPS) emerged/improved. |
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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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cedrik
Joined: 16 Oct 2011
Posts: 2008
Location: Rom�nia
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| Posted: Wed Feb 13, 2019 3:23 am Post subject: |
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| CPUShack wrote: | What matters most is I do not have one of these and need one haha  |
exactly.. that's why i asked this question, would be a very nice addition to my collection...
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cuttingedgecs
Joined: 08 Oct 2017
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| Posted: Wed Feb 13, 2019 3:47 am Post subject: |
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| cedrik wrote: |
exactly.. that's why i asked this question, would be a very nice addition to my collection... |
I think the closest you're going to get is finding a 2-5" LCD screen with a CPU containing controller built in. This document suggests that the production units may well have used a Z80 http://www.sharp-world.com/corporate/info/rd/tj4/pdf/3.pdf
I know a few of Sharp's products from the time used CGS, and they sold units to others as an OEM, but finding out what and to whom would be tricky. |
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