Washed colors/light leaking in one corner
I bought old 27" Apple LED Cinema Display recently with well known problem of screen flickering on higher brightness + sometimes (not all the time!) washed colors/light leaking on right upper corner. I opened it and it was clear right away, that connection on left LED strip is very loose and broke completely when I touched it. I thought that backlight leaking on right side is connected with this.
I ordered spare pair of LED strips to LM270WQ1 (used ones only available), dismantled LCD panel, replaced both LED backlight strips successfully and mounted panel back.
To my surprise: when I finally connected it to computer, backlight is working without any issues on highest brightness setting but unfortunately the right upper corner has still washed colors/backlight leaking. In addition I can see some image persistence as well.
Any clues what is wrong? Anyone had similar issues?