Forums

Display module for front panel, with softkeys?

Started by Joerg October 21, 2014
Folks,

Looking for a simple control interface. It should ideally be a module
that can be screwed or snapped into a front panel cutout and contain this:

1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be
another rectangular form factor, just not as big as a smart phone if
possible.

2. Addressable via SPI or similar. Ideally alphanumeric for fast and
lean data transfer but with an option to load graphics. The latter isn't
a requirement. A chance to load foreign character sets would be nice.

3. Integrated softkeys, maybe three per side or so, that can also be
read via the same or another serial bus connection. A touch screen with
a somewhat larger display could also work, then the display could be
almost the size of older generation smart phones.

4. Washable, so ideally it should be overlay (foil) keys where fluids
cannot seep inside and the screen should be sealed. Hospital grade
cleaning agents will be used on it.

Cost is not so important, it's for prototyping at first. We could build
all this ourselves but there's so much packaging involved and I could
imagine there already is something out there. I just don't know which
vendors to look for becasue I never needed anything like this. A pointer
to a vendor would also be nice.

-- 
Regards, Joerg

http://www.analogconsultants.com/
Den onsdag den 22. oktober 2014 02.48.29 UTC+2 skrev Joerg:
> Folks, > > > > Looking for a simple control interface. It should ideally be a module > > that can be screwed or snapped into a front panel cutout and contain this: > > > > 1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be > > another rectangular form factor, just not as big as a smart phone if > > possible. > > > > 2. Addressable via SPI or similar. Ideally alphanumeric for fast and > > lean data transfer but with an option to load graphics. The latter isn't > > a requirement. A chance to load foreign character sets would be nice. > > > > 3. Integrated softkeys, maybe three per side or so, that can also be > > read via the same or another serial bus connection. A touch screen with > > a somewhat larger display could also work, then the display could be > > almost the size of older generation smart phones. > > > > 4. Washable, so ideally it should be overlay (foil) keys where fluids > > cannot seep inside and the screen should be sealed. Hospital grade > > cleaning agents will be used on it. > > > > Cost is not so important, it's for prototyping at first. We could build > > all this ourselves but there's so much packaging involved and I could > > imagine there already is something out there. I just don't know which > > vendors to look for becasue I never needed anything like this. A pointer > > to a vendor would also be nice. >
I use one of these: http://www.buydisplay.com/default/7-inch-lcd-module-capacitive-touch-screen-panel-i2c-spi-serial spi for text and graphics, it has build fonts and can use an external flash with other fonts I2C for touch, the touch is capacitive and works through the usual plastic overlays maybe even thin glass I haven tried. I think you can also get 4.3" and 5" with the same controller -Lasse
On Tue, 21 Oct 2014 17:48:21 -0700, Joerg <news@analogconsultants.com>
wrote:

>Folks, > >Looking for a simple control interface. It should ideally be a module >that can be screwed or snapped into a front panel cutout and contain this: > >1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be >another rectangular form factor, just not as big as a smart phone if >possible. > >2. Addressable via SPI or similar. Ideally alphanumeric for fast and >lean data transfer but with an option to load graphics. The latter isn't >a requirement. A chance to load foreign character sets would be nice. > >3. Integrated softkeys, maybe three per side or so, that can also be >read via the same or another serial bus connection. A touch screen with >a somewhat larger display could also work, then the display could be >almost the size of older generation smart phones. > >4. Washable, so ideally it should be overlay (foil) keys where fluids >cannot seep inside and the screen should be sealed. Hospital grade >cleaning agents will be used on it. > >Cost is not so important, it's for prototyping at first. We could build >all this ourselves but there's so much packaging involved and I could >imagine there already is something out there. I just don't know which >vendors to look for becasue I never needed anything like this. A pointer >to a vendor would also be nice.
How about 2.6"? <http://store.earthlcd.com/ezLCD-301?sc=21&category=297> Cheers
On Tue, 21 Oct 2014 17:48:21 -0700, Joerg <news@analogconsultants.com>
Gave us:

>Folks, > >Looking for a simple control interface. It should ideally be a module >that can be screwed or snapped into a front panel cutout and contain this: > >1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be >another rectangular form factor, just not as big as a smart phone if >possible. > >2. Addressable via SPI or similar. Ideally alphanumeric for fast and >lean data transfer but with an option to load graphics. The latter isn't >a requirement. A chance to load foreign character sets would be nice. > >3. Integrated softkeys, maybe three per side or so, that can also be >read via the same or another serial bus connection. A touch screen with >a somewhat larger display could also work, then the display could be >almost the size of older generation smart phones. > >4. Washable, so ideally it should be overlay (foil) keys where fluids >cannot seep inside and the screen should be sealed. Hospital grade >cleaning agents will be used on it. > >Cost is not so important, it's for prototyping at first. We could build >all this ourselves but there's so much packaging involved and I could >imagine there already is something out there. I just don't know which >vendors to look for becasue I never needed anything like this. A pointer >to a vendor would also be nice.
Med app? Look at OLED, and lose the backlight need. They are also heavy into those smaller form factors. Do not know about touch capacity, etc. You could build your own soft buttons into a flat front panel with this behind a simple hole. No need to buy an off the shelf item that does not fill your entire needs list. They are also doing flex panel stuff like rolled up and folded keyboards and displays.
Lasse Langwadt Christensen wrote:
> Den onsdag den 22. oktober 2014 02.48.29 UTC+2 skrev Joerg: >> Folks, >> >> >> >> Looking for a simple control interface. It should ideally be a >> module >> >> that can be screwed or snapped into a front panel cutout and >> contain this: >> >> >> >> 1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can >> also be >> >> another rectangular form factor, just not as big as a smart phone >> if >> >> possible. >> >> >> >> 2. Addressable via SPI or similar. Ideally alphanumeric for fast >> and >> >> lean data transfer but with an option to load graphics. The latter >> isn't >> >> a requirement. A chance to load foreign character sets would be >> nice. >> >> >> >> 3. Integrated softkeys, maybe three per side or so, that can also >> be >> >> read via the same or another serial bus connection. A touch screen >> with >> >> a somewhat larger display could also work, then the display could >> be >> >> almost the size of older generation smart phones. >> >> >> >> 4. Washable, so ideally it should be overlay (foil) keys where >> fluids >> >> cannot seep inside and the screen should be sealed. Hospital grade >> >> cleaning agents will be used on it. >> >> >> >> Cost is not so important, it's for prototyping at first. We could >> build >> >> all this ourselves but there's so much packaging involved and I >> could >> >> imagine there already is something out there. I just don't know >> which >> >> vendors to look for becasue I never needed anything like this. A >> pointer >> >> to a vendor would also be nice. >> > > I use one of these: > > http://www.buydisplay.com/default/7-inch-lcd-module-capacitive-touch-screen-panel-i2c-spi-serial > > > spi for text and graphics, it has build fonts and can use an external > flash with other fonts > > I2C for touch, the touch is capacitive and works through the usual > plastic overlays maybe even thin glass I haven tried. > > I think you can also get 4.3" and 5" with the same controller >
4.3" could barely fit, 7" is way too big. These need a ton of power though. -- Regards, Joerg http://www.analogconsultants.com/
Martin Riddle wrote:
> On Tue, 21 Oct 2014 17:48:21 -0700, Joerg <news@analogconsultants.com> > wrote: > >> Folks, >> >> Looking for a simple control interface. It should ideally be a module >> that can be screwed or snapped into a front panel cutout and contain this: >> >> 1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be >> another rectangular form factor, just not as big as a smart phone if >> possible. >> >> 2. Addressable via SPI or similar. Ideally alphanumeric for fast and >> lean data transfer but with an option to load graphics. The latter isn't >> a requirement. A chance to load foreign character sets would be nice. >> >> 3. Integrated softkeys, maybe three per side or so, that can also be >> read via the same or another serial bus connection. A touch screen with >> a somewhat larger display could also work, then the display could be >> almost the size of older generation smart phones. >> >> 4. Washable, so ideally it should be overlay (foil) keys where fluids >> cannot seep inside and the screen should be sealed. Hospital grade >> cleaning agents will be used on it. >> >> Cost is not so important, it's for prototyping at first. We could build >> all this ourselves but there's so much packaging involved and I could >> imagine there already is something out there. I just don't know which >> vendors to look for becasue I never needed anything like this. A pointer >> to a vendor would also be nice. > > How about 2.6"? > <http://store.earthlcd.com/ezLCD-301?sc=21&category=297> >
That is very nice. If they had this in a water-resistant bezel for top mounting (so we don't need to have our own overlay made) that would work. -- Regards, Joerg http://www.analogconsultants.com/
DecadentLinuxUserNumeroUno wrote:
> On Tue, 21 Oct 2014 17:48:21 -0700, Joerg <news@analogconsultants.com> > Gave us: > >> Folks, >> >> Looking for a simple control interface. It should ideally be a module >> that can be screwed or snapped into a front panel cutout and contain this: >> >> 1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be >> another rectangular form factor, just not as big as a smart phone if >> possible. >> >> 2. Addressable via SPI or similar. Ideally alphanumeric for fast and >> lean data transfer but with an option to load graphics. The latter isn't >> a requirement. A chance to load foreign character sets would be nice. >> >> 3. Integrated softkeys, maybe three per side or so, that can also be >> read via the same or another serial bus connection. A touch screen with >> a somewhat larger display could also work, then the display could be >> almost the size of older generation smart phones. >> >> 4. Washable, so ideally it should be overlay (foil) keys where fluids >> cannot seep inside and the screen should be sealed. Hospital grade >> cleaning agents will be used on it. >> >> Cost is not so important, it's for prototyping at first. We could build >> all this ourselves but there's so much packaging involved and I could >> imagine there already is something out there. I just don't know which >> vendors to look for becasue I never needed anything like this. A pointer >> to a vendor would also be nice. > > > Med app? >
Yes.
> Look at OLED, and lose the backlight need. > > They are also heavy into those smaller form factors. >
But who is "they"?
> Do not know about touch capacity, etc. > > You could build your own soft buttons into a flat front panel with > this behind a simple hole. No need to buy an off the shelf item that > does not fill your entire needs list. > > They are also doing flex panel stuff like rolled up and folded > keyboards and displays.
Best would be with softkeys in there, or a touch screen like Martin suggested but then the whole thing as a "ready-to-go" module that mounts from the outside in, through a hole, and results in a mechanically finished and sealed entity. -- Regards, Joerg http://www.analogconsultants.com/
Den onsdag den 22. oktober 2014 16.29.45 UTC+2 skrev Joerg:
> Lasse Langwadt Christensen wrote: > > > Den onsdag den 22. oktober 2014 02.48.29 UTC+2 skrev Joerg: > > >> Folks, > > >> > > >> > > >> > > >> Looking for a simple control interface. It should ideally be a > > >> module > > >> > > >> that can be screwed or snapped into a front panel cutout and > > >> contain this: > > >> > > >> > > >> > > >> 1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can > > >> also be > > >> > > >> another rectangular form factor, just not as big as a smart phone > > >> if > > >> > > >> possible. > > >> > > >> > > >> > > >> 2. Addressable via SPI or similar. Ideally alphanumeric for fast > > >> and > > >> > > >> lean data transfer but with an option to load graphics. The latter > > >> isn't > > >> > > >> a requirement. A chance to load foreign character sets would be > > >> nice. > > >> > > >> > > >> > > >> 3. Integrated softkeys, maybe three per side or so, that can also > > >> be > > >> > > >> read via the same or another serial bus connection. A touch screen > > >> with > > >> > > >> a somewhat larger display could also work, then the display could > > >> be > > >> > > >> almost the size of older generation smart phones. > > >> > > >> > > >> > > >> 4. Washable, so ideally it should be overlay (foil) keys where > > >> fluids > > >> > > >> cannot seep inside and the screen should be sealed. Hospital grade > > >> > > >> cleaning agents will be used on it. > > >> > > >> > > >> > > >> Cost is not so important, it's for prototyping at first. We could > > >> build > > >> > > >> all this ourselves but there's so much packaging involved and I > > >> could > > >> > > >> imagine there already is something out there. I just don't know > > >> which > > >> > > >> vendors to look for becasue I never needed anything like this. A > > >> pointer > > >> > > >> to a vendor would also be nice. > > >> > > > > > > I use one of these: > > > > > > http://www.buydisplay.com/default/7-inch-lcd-module-capacitive-touch-screen-panel-i2c-spi-serial > > > > > > > > > spi for text and graphics, it has build fonts and can use an external > > > flash with other fonts > > > > > > I2C for touch, the touch is capacitive and works through the usual > > > plastic overlays maybe even thin glass I haven tried. > > > > > > I think you can also get 4.3" and 5" with the same controller > > > > > > > > > 4.3" could barely fit, 7" is way too big. These need a ton of power though. >
yeh most of it is backlight I think, I see about 200mA at 5V they also have smaller displays, resistive touch though http://www.buydisplay.com/default/qvga-2-4-inch-tft-lcd-touch-shield-320x240-serial-module-display-ili9341 does water resistant snap in even exist? I'd image it almost impossible to get tight with out an overlay and you'll have all kinds of little place for dirt to hide compared to a flat overlay -Lasse
Lasse Langwadt Christensen wrote:
> Den onsdag den 22. oktober 2014 16.29.45 UTC+2 skrev Joerg: >> Lasse Langwadt Christensen wrote: >> >>> Den onsdag den 22. oktober 2014 02.48.29 UTC+2 skrev Joerg: >>>> Folks, Looking for a simple control interface. It should >>>> ideally be a module that can be screwed or snapped into a front >>>> panel cutout and contain this: 1. A backlit LCD/TFT/whatever >>>> monitor of 1.5" or 2" square. Can also be another rectangular >>>> form factor, just not as big as a smart phone if possible. 2. >>>> Addressable via SPI or similar. Ideally alphanumeric for fast >>>> and lean data transfer but with an option to load graphics. The >>>> latter isn't a requirement. A chance to load foreign character >>>> sets would be nice. 3. Integrated softkeys, maybe three per >>>> side or so, that can also be read via the same or another >>>> serial bus connection. A touch screen with a somewhat larger >>>> display could also work, then the display could be almost the >>>> size of older generation smart phones. 4. Washable, so ideally >>>> it should be overlay (foil) keys where fluids cannot seep >>>> inside and the screen should be sealed. Hospital grade cleaning >>>> agents will be used on it. Cost is not so important, it's for >>>> prototyping at first. We could build all this ourselves but >>>> there's so much packaging involved and I could imagine there >>>> already is something out there. I just don't know which vendors >>>> to look for becasue I never needed anything like this. A >>>> pointer to a vendor would also be nice. >>> I use one of these: >>> http://www.buydisplay.com/default/7-inch-lcd-module-capacitive-touch-screen-panel-i2c-spi-serial >>> spi for text and graphics, it has build fonts and can use an >>> external flash with other fonts I2C for touch, the touch is >>> capacitive and works through the usual plastic overlays maybe >>> even thin glass I haven tried. I think you can also get 4.3" and >>> 5" with the same controller >> >> >> >> >> 4.3" could barely fit, 7" is way too big. These need a ton of power >> though. >> > > yeh most of it is backlight I think, I see about 200mA at 5V > > they also have smaller displays, resistive touch though > > http://www.buydisplay.com/default/qvga-2-4-inch-tft-lcd-touch-shield-320x240-serial-module-display-ili9341 > > > does water resistant snap in even exist? I'd image it almost > impossible to get tight with out an overlay and you'll have all kinds > of little place for dirt to hide compared to a flat overlay >
They do exist, I saw them in the control panel of industrial gear but can't remember the manufacturer. Hene my post here. Looks like this: A housing like that of an old analog panel meter is screwed into a hole of the front panel. Except that instead of round the cut-out in the panel as well as the "glass" area of the "meter" was square. Instead of the glass there was an overlay with buttons molded in. The center had a display, also under the same overlay. The overlay was glued to the font bezel so no liquids can get in. The whole drop-in unit had a rubber gasket underneath it that presses against the front panel around the cut-out, so no liquid can get in there either. The buttons were draped around the LCD and you could change their functions dynamically because the actual button function was spelled out on the LCD (softkey) instead of printed on the overlay. -- Regards, Joerg http://www.analogconsultants.com/
On Wed, 22 Oct 2014 07:35:11 -0700, Joerg <news@analogconsultants.com>
Gave us:

>But who is "they"? >
The display panel industry, dork. Try to keep up, since YOU are the one asking about it. Use a little common sense. "they" should prompt you to investigate the panle type, not ask who they are. In such a hunt, a LOT of "theys" will show up, or you simply want everyone else to do your googling for you. Jeez.