LCD screens for car interiors (heat/direct sun tolerant)? - Page 1
Forum section: electronics / projects

author: dmg
author_rank: Regular Contributor
timestamp: May 06, 2016, 04:04:37 pm
content: I need to source a graphic LCD screen (about 128x64 or 192x128 pixels in resolution) or any other type of graphic, cheap-ish screen for a project. The LCD screen will go inside a car and be exposed to the associated sun-related issues of high temperature, direct sunlight, etc. Also, thins might get cold in the winter.I've searched and found several GLCD manufacturers and all seem to have very similar GLCD ambient specs, most of them working from -20ºC to 70ºC, leading me to think that this is a technological limitation. Some manufacturers have LCD's advertised good for car interior but I can't see where does that reflect in the specs.I've seen that OLED's have better temperature range in general but I'm concerned about potential fast degradation.Any recommendation of known-good LCD models/manufacturers that work reasonably well inside a car?Thanks in advance

author: danadak
author_rank: Super Contributor
timestamp: May 06, 2016, 04:12:53 pm
content: Sharp, Kyocera, google "automotive grade lcd", quite a few vendors.As far as direct sun, thats typically a Transflective display, of which boththe above vendors offer.Regards, Dana.

author: dmg
author_rank: Regular Contributor
timestamp: May 06, 2016, 04:28:09 pm
content: Quote from: danadak on May 06, 2016, 04:12:53 pmThanks, but these vendors mostly offer fancier things than I need, for example sharp has very nice LCD's but all color LCD's and larger than I need. I want something like this:http://www.buydisplay.com/default/2-6-inch-128x64-cog-lcd-module-display-serial-spi-white-bluebut good enough to withstand a southern Spain summer sunny day iside a car. I've googled and found some people who offer what I want but are moslty obscure-ish manufacturers that I can't find distributors of or I can't see how their specs make their LCD's capable of this torture while others aren't.

author: matkar
author_rank: Regular Contributor
timestamp: May 06, 2016, 08:03:24 pm
content: In general those white pixels on blue background LCDs are not recomended for direct sun exposure. Like danadak mentioned the best choice is reflective, second best is transflective if you need backlight too.Note some producers make lousy LCDs and others are excellent. You have the chance to spot the obvious differences once you've had a couple of them on the table. Unfortunatelly these differences are not seen by reading datasheets.In general avoid OLEDs. They degrade on UV light even faster.Avoid color LCDs. Monochromatic LCDs have much better visibility.

author: danadak
author_rank: Super Contributor
timestamp: May 06, 2016, 10:38:34 pm
content: Find some other car related products with display, and tear them apart,to see who they are using.Regards, Dana.

author: wraper
author_rank: Unknown
timestamp: May 06, 2016, 10:43:27 pm
content: Quote from: danadak on May 06, 2016, 10:38:34 pmJust to find some custom lcd.

author: danadak
author_rank: Super Contributor
timestamp: May 06, 2016, 11:05:26 pm
content: To find vendor name, even standard off the shelf LCD, you never know.Regards, Dana.