 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : Bright Display
| Author | Message | ||||
palcal Guru  Joined: 12/10/2011 Location: AustraliaPosts: 1993 |
Is there a display that is easier to see outside in the sunlight (not direct). The ILI9341 has to be well shaded so as it can be seen easily. I use the boat computer and it is so hard to see. I seem to remember some one mentioning it but a search proved fruitless. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
||||
| ryanm Senior Member  Joined: 25/09/2015 Location: AustraliaPosts: 203 |
You might be better off with an e-Ink display. There's quite a few cheap ones out there now. It works on reflected light not a backlight so it's got perfect visibility in full sunlight. |
||||
| palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1993 |
Yes, Peter Mather wrote some code to use them with the Micromite, I tried one and they are just too slow to use for anything that updates quickly. I ended up using it for a little weather station. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
||||
CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 2170 |
try a bog-standard LCD black/white panel. A Nokia 5110/original LCD watch display has great full-sun visibility, although a bit small. If you could find a bigger one that would be nice... 128x64 seems possible, something like this: https://www.ebay.co.uk/itm/12864-Character-LCD-Display-Module-128x64-Dots-Graphic-Matrix-for-esr-meter-LED/171663936688? hash=item27f7f7ccb0:g:EqEAAOSwzrxUzU0x:rk:33:pf:0 or this (dead easy interface ) https://www.ebay.co.uk/itm/LCD-Display-LM6029A-128-x-64-Graphic-3-3-volt-Z895/292065105896?epid=701960553&hash=item44006 fd7e8:g:cfUAAOxyZqhRg5A8:rk:49:pf:0 or this https://www.ebay.co.uk/itm/ST7920-128x64-12864-LCD-Display-Blue-Backlight-Parallel-Serial-for-Arduino-5V/302309454831?ha sh=item46630c33ef:g:LLMAAOSw42dZDZel:rk:19:pf:0 |
||||
| palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1993 |
It would have to have Touch capability. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
||||
| CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 2170 |
ah. that might be a problem. |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10310 |
Available from other places, needs an XPT2046 to I/F |
||||
| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5089 |
LCD's (and other displays) that can be read in direct sunlight are a special art. There are several approaches to achieve what you need 1/ increase the brightness of the backlight (in other words, remove the plastic part behind the glass, and make a high power LED (alu) frame that can get rid of the heat generated by the LED's. This is what they do in cash machines. 2/ use transflective displays (especially in combination with a light sensor this works well) in darkness the standard backlight is ON the display works in transparent mode, when brightness is good, the backlight is switched off, and the display is used reflective mode. For monochrome LCD's this is possible, I am not sure about color. edit: apparently that can be done: color lcd direct sunlinght readable 3/ other methods (non LCD) such as LED matrix displays or E-ink. Also here: brightness comes at a cost, since cooling the LED's is essential. 4/ depending on what you need to display, the more recent 7 segment displays can sometimes be used. There are versions that can be read in sunlight. Since you talked about "touch" I assume option 1 or maybe 2 should be exploited. Volhout PicomiteVGA PETSCII ROBOTS |
||||
 Print this page |
 |
The Back Shed's forum code is written, and hosted, in Australia. | © JAQ Software 2025 |
