Post by thread:[EE] Miniature 7-segment display

Something like this is really cool -- bright yet miniacture 7-segment display. They can make your product look rather high class yet do not occupy much space (which is always quite tight ...). http://www.keyence.com/products/sensors/fiberoptic/fsv20/fsv20_features_1.php Unfortunately so far I have not been able to find commercial off the shelf parts. I believe companies like Keyence and others are using COB (chip on board) to achieve this kind of display. Normally you do not want to do this because manufacturing can be complicated. Do you have some ideas of where to get customized part for this kind of things? Xiaofan

At 09:09 PM 11/2/2008, you wrote: >Something like this is really cool -- bright yet miniacture 7-segment >display. They can make your product look rather high class yet >do not occupy much space (which is always quite tight ...). >http://www.keyence.com/products/sensors/fiberoptic/fsv20/fsv20_features_1.php > >Unfortunately so far I have not been able to find commercial >off the shelf parts. I believe companies like Keyence and >others are using COB (chip on board) to achieve this kind >of display. Normally you do not want to do this because >manufacturing can be complicated. > >Do you have some ideas of where to get customized >part for this kind of things? > >Xiaofan What about these" www.rohm.com/products/databook/dp/pdf/lf-301vama.pdf 8mm high character and available at DigiKey, I have used them several times, especially because they are SMT. John >

King bright perhaps? 5.08 mm high displays. www.kingbright.com/product_main_1.php?product01=20050504115215&product02=20050525015100&level=20050525021542&lang=English www.kingbright.com/product_main_1.php?product01=20050504115215&product02=20050525015207&level=20050525051040&lang=English http://www.kingbright.com/manager/upload/pdf/KCDA02-138(Ver1189479386.1) 7.62 mm displays http://www.kingbright.com/product_main1.php?product01=20050504115215&product02=20050525015207&lang=English#20050525015207 I believe there are numerous other sellers. All SMT stuff too. Stephen --- On Sun, 11/2/08, Xiaofan Chen <spam_OUTxiaofancTakeThisOuTgmail.com> wrote: {Quote hidden}> From: Xiaofan Chen <.....xiaofancKILLspam@spam@gmail.com> > Subject: [EE] Miniature 7-segment display > To: "Microcontroller discussion list - Public." <piclistKILLspammit.edu> > Date: Sunday, November 2, 2008, 9:09 PM > Something like this is really cool -- bright yet miniacture > 7-segment > display. They can make your product look rather high class > yet > do not occupy much space (which is always quite tight ...). > www.keyence.com/products/sensors/fiberoptic/fsv20/fsv20_features_1.php > > Unfortunately so far I have not been able to find > commercial > off the shelf parts. I believe companies like Keyence and > others are using COB (chip on board) to achieve this kind > of display. Normally you do not want to do this because > manufacturing can be complicated. > > Do you have some ideas of where to get customized > part for this kind of things? > > Xiaofan > --

On Mon, Nov 3, 2008 at 10:50 AM, Stephen R Phillips <.....cyberman_phillipsKILLspam.....yahoo.com> wrote: > King bright perhaps? > 5.08 mm high displays. Thanks but this might be still too big (10mm x 6.9mm dimension). Take note that Keyence sensor is really quite slim (9mm). http://www.keyence.ca/products/sensors/fiberoptic/fsv20/fsv20_dimensions_1.php Regards, Xiaofan

Xiaofan, I use calculator-style LED displays, just 1 Australian dollar each Search for D04 here http://www.oatleyelectronics.com/ Pictures of mine. They're multiplexed just like any other display http://home.clear.net.nz/pages/joecolquitt/led1.jpg End-on, showing lenses http://home.clear.net.nz/pages/joecolquitt/led2.jpg If '7120' is a date code ......... wow ! http://home.clear.net.nz/pages/joecolquitt/led3.jpg

Xiaofan Chen wrote: > On Mon, Nov 3, 2008 at 10:50 AM, Stephen R Phillips > <EraseMEcyberman_phillipsspam_OUTTakeThisOuTyahoo.com> wrote: >> King bright perhaps? >> 5.08 mm high displays. > Thanks but this might be still too big (10mm x 6.9mm dimension). > Take note that Keyence sensor is really quite slim (9mm). > www.keyence.ca/products/sensors/fiberoptic/fsv20/fsv20_dimensions_1.php > > Regards, > Xiaofan Did you find one that is that size, Xiaofan? It obviously exists. I'd be a bit surprised if it were specifically made for Keyence. - Martin

Hi Xiaofan: I have some hand held military radios that have a LCD assembly which is slightly larger than a Nickel coin, see: http://www.prc68.com/I/816173.shtml#LCD there are 5 7-segment characters about 1/8" high. It uses COB technology and has a back light. I have not found a source for them as spare parts. http://www.prc68.com/I/816173.shtml#LCD I've started looking into using a multiplexed glass, which might be lower in cost than a custom part but that takes many more PIC pins to drive than the 4 wire interface for the above COB unit. -- Have Fun, Brooke Clarke http://www.prc68.com

On Thu, Nov 27, 2008 at 1:35 AM, Brooke Clarke <@spam@brookeKILLspampacific.net> wrote: > I've started looking into using a multiplexed glass, which might be lower in > cost than a custom part but that takes many more PIC pins to drive than the 4 > wire interface for the above COB unit. > One solution is to use machine placed 0402 SMT LEDs. This has been successfully used. But you need to have good pick and place accuracy. Xiaofan