Akai LCT3201AD Screen Darker on Right Side

[YamahaFreak]

This is a weird one, folks. I was paid to repair the backlight (bad caps), but once I was all lit up again, I now notice that the right hand side of the screen is slightly (noticeably) darker than the left side. There is a gradual gradient from light to dark, with no bars or bands. Also, the darker the displayed image is, the more dramatic the difference between the two sides. I'd think this rules out issues with the panel or the T-Con board, so I'm left to contemplate the inverter board. I must have replaced two dozen caps in this thing, between the power supply and the mainboard (anything that looked remotely suspicious) so I can't think of any other place to point the finger. I have attached a photo so you can see the issue. I have been all over the Internet looking everywhere for answers, but this doesn't appear to be a common anomaly. This one has me stumped!