What is this display called and how to fix these lines ?  - Page 1
Forum section: electronics / repair

author: komrad2236
author_rank: Contributor
timestamp: December 02, 2024, 10:19:47 am
content: Hi all,I’m dealing with an issue where a screen I have shows vertical lines that distort the image to the point where it’s unreadable. I’ve attached some pictures to illustrate the problem.(I don't know how to call this screen)I think I know what the problem might be, most likely this flat cable but I am not sure how to restore the connection.First picture shows what the issue is and the display itself.Second and third photo show the insides when I dissembled it, where I suspect the problem to be.The flat cable which attaches to the PCB, and then the orange part of that cable that attaches to the screen, screen seems to be see trough.

author: cte
author_rank: Regular Contributor
timestamp: December 02, 2024, 11:15:05 am
content: Optrex has been aquired by Kyocera in 2012.For the 323 line, I found some electrical specs here, not sure if this is helpful though:https://serdisplib.sourceforge.net/ser/optrex323.html

author: elektryk
author_rank: Regular Contributor
timestamp: December 02, 2024, 11:17:34 am
content: It is from car? Please check if there's a replacement display on ali.You can try soldering but it may not help (especially when connections beetween flex and glass or flex and chip are broken).

author: komrad2236
author_rank: Contributor
timestamp: December 02, 2024, 07:49:24 pm
content: Hi, yes its from a car, Peugeot 307Sadly I am unable to find one that can be delivered to me.Junkyard don't have single one for now.So my only option is to try and repair it, there has to be a way, no ?

author: komrad2236
author_rank: Contributor
timestamp: December 02, 2024, 11:23:22 pm
content: Here it is, these two cables unglued from one another, I just have to find a way to remove old glue and glue them together, how is this done ?If only I could know the name of these cables or the process itself, I could find some videos that demonstrate it

author: elektryk
author_rank: Regular Contributor
timestamp: December 03, 2024, 06:03:07 am
content: Replacement LCD with piggyback PCB, smart solution IMHO.https://store.minitools.com/en/sepdisp28n-lcd-display-for-borg-johnson-controls-and-magneti-marelli-for-citroen-fiat-ulysse-lancia-phedra-e-peugeot-body-computer.htmlhttps://store.minitools.com/en/sepdisp29n-lcd-display-for-borg-johnson-controls-and-magneti-marelli-for-citroen-fiat-ulysse-lancia-phedra-e-peugeot-body-computer.htmlThere are 4 versions of this screen, so please make sure which one will fit.https://store.minitools.com/media/pdf/comparison-sheet-SEPDISP28N-SEPDISP28P-SEPDISP29N-SEPDISP29P-displays.pdf

author: inse
author_rank: Super Contributor
timestamp: December 03, 2024, 06:41:42 am
content: Quote from: komrad2236 on December 02, 2024, 11:23:22 pmThe cable is glued to the glass, there is a very low chance to fix it without knowing the parameters of the process (and getting the correct alignment).But what‘s to be lost as the display is almost unreadable

author: ealex
author_rank: Frequent Contributor
timestamp: December 03, 2024, 08:31:31 am
content: I recommend minitools as well - I had a dashboard lcd with the same connections style and same failure mode.I've tried re-heating the connection (heat and pressure) - worked for a few days, then failed again.Pick the proper replacement and follow their instructions - especially when cleaning the old adhesive. It will dissolve in IPA but will take some time and gentle scrubbing (with a q-tip for example)