Re: LVDS display possible? [Was: Re: GTAX]
Am 28.11.2011 um 22:47 schrieb EdorFaus: > Just out of curiosity... > > If we ignore power supply and backlight for the moment, do you think it would > be feasible to connect an LVDS (technically FPD-Link I guess) LCD panel to > the GTA04, without a lot of extra hardware? There is a beagleboard project how to interface the OMAP processor: http://bb-lvds.blogspot.com/ using this chip: http://www.ti.com/product/sn75lvds83b > > If so, that could be a neat mod for those of us with broken laptops lying > around... Though it would be more pad than big phone I guess. > > -Frode > > On 11/28/2011 02:30 PM, Dr. H. Nikolaus Schaller wrote: >> Am 28.11.2011 um 14:17 schrieb Xavier Cremaschi: >>> Le 28/11/2011 08:02, Philip Rhoades a écrit : Don't we need a larger form factor? Like a 4.5" screen? Has there been any discussion along these lines? > >> For a GTA04++ there is no need to change the video system. >> It is capable of driving>75 MHz pixel clock and HDTV resolution. >> >> And, a larger display area does not necessarily increase the >> pixel density. They just become bigger (unless we want to >> increase the resolution as well). >> >> What may need to be changed is the power supply and it may >> need level shifters. But this is the simplest part in solving the equation. >> If we get documentation. >> >>> - finding a new screen >> >> This is also quite tough. Either, they are not available through >> distribution. >> Or if they are, a VGA display with touch and 3,5 - 4,5 inch usually costs >> ~ 100 USD (e.g. Avnet Express, Mouser, ...). >> >> I think we all want to have a display with superior-resolution (like iPad) >> but cheap as water. And available from steady production. And with decent >> documentation. The last one rules out choosing replacement iPhone 4S >> displays... > > ___ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
LVDS display possible? [Was: Re: GTAX]
Just out of curiosity... If we ignore power supply and backlight for the moment, do you think it would be feasible to connect an LVDS (technically FPD-Link I guess) LCD panel to the GTA04, without a lot of extra hardware? If so, that could be a neat mod for those of us with broken laptops lying around... Though it would be more pad than big phone I guess. -Frode On 11/28/2011 02:30 PM, Dr. H. Nikolaus Schaller wrote: Am 28.11.2011 um 14:17 schrieb Xavier Cremaschi: Le 28/11/2011 08:02, Philip Rhoades a écrit : Don't we need a larger form factor? Like a 4.5" screen? Has there been any discussion along these lines? For a GTA04++ there is no need to change the video system. It is capable of driving>75 MHz pixel clock and HDTV resolution. And, a larger display area does not necessarily increase the pixel density. They just become bigger (unless we want to increase the resolution as well). What may need to be changed is the power supply and it may need level shifters. But this is the simplest part in solving the equation. If we get documentation. - finding a new screen This is also quite tough. Either, they are not available through distribution. Or if they are, a VGA display with touch and 3,5 - 4,5 inch usually costs ~ 100 USD (e.g. Avnet Express, Mouser, ...). I think we all want to have a display with superior-resolution (like iPad) but cheap as water. And available from steady production. And with decent documentation. The last one rules out choosing replacement iPhone 4S displays... ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GTAX
Am 28.11.2011 um 14:17 schrieb Xavier Cremaschi: > Le 28/11/2011 08:02, Philip Rhoades a écrit : >> People, >> >> Don't we need a larger form factor? Like a 4.5" screen? Has there been >> any discussion along these lines? >> >> Thanks, >> >> Phil. > > > AFAIK changing screen size means : > - changing video chip (or not, you can be software-accelerated only) For a GTA04++ there is no need to change the video system. It is capable of driving >75 MHz pixel clock and HDTV resolution. And, a larger display area does not necessarily increase the pixel density. They just become bigger (unless we want to increase the resolution as well). What may need to be changed is the power supply and it may need level shifters. But this is the simplest part in solving the equation. If we get documentation. > - finding a new screen This is also quite tough. Either, they are not available through distribution. Or if they are, a VGA display with touch and 3,5 - 4,5 inch usually costs ~ 100 USD (e.g. Avnet Express, Mouser, ...). I think we all want to have a display with superior-resolution (like iPad) but cheap as water. And available from steady production. And with decent documentation. The last one rules out choosing replacement iPhone 4S displays... > - changing case > > And surprisingly the last one is difficult : you need to design one (CAD > ?) and then either you have a 3D printer to make your own case or you > pay to produce a series of 1000 or more. > > Xavier. Nikolaus ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GTAX
Le 28/11/2011 08:02, Philip Rhoades a écrit : > People, > > Don't we need a larger form factor? Like a 4.5" screen? Has there been > any discussion along these lines? > > Thanks, > > Phil. AFAIK changing screen size means : - changing video chip (or not, you can be software-accelerated only) - finding a new screen - changing case And surprisingly the last one is difficult : you need to design one (CAD ?) and then either you have a 3D printer to make your own case or you pay to produce a series of 1000 or more. Xavier. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
