Screen uniformity imbalance is also apparent from side viewing angles, so stay more in the center viewing area - preferably at eye level. Lastly, LED TVs generally lose contrast levels at angles. You wont notice the screen uniformity issue here either because of the surrounding light. In brighter rooms, fight ambient light by turning up the backlight. In darker room lighting turn the backlight down to 60% and poof! the screen light uniformity issue is practically gone. We frequently recommend following our calibrated picture settings for your TV, with the only adjustment being the backlight depending upon room light conditions. Next, consider that the screen uniformity issue is only there due to the much brighter LED lighting. LEDs are brighter, use less energy, and last longer than do their flourescent counterparts. The left and right edges of the screen are slightly brighter than the center of the screen, thus creating the problem.īut how much of an issue is it? You hear from sales people how great the new LED TVs are, right? First of all I would like to point out that the problem results from a technological breakthrough in LED backlighting. This technical deficiency occurs with both matte and clear coat finish LED panels from our experience. When supported by both the monitor and external device, the best cable to use is HDMI. Make sure the video cable is connected securely at both ends, and if the lines remain, replace the video cable. This is most commonly caused by a loose or defective video cable. Screen light imbalances occur when one portion of the screen is brighter than others, thus causing serious issues with color and black levels. The lines on the monitor are moving or jittery. These are naturally called edge-lit LED TVs. The backlighting is normally placed at the sides of the panel in 95% of LED TVs. There are almost no LED televisions in the market place that do not have some issue with uniformity, but it has gotten better in some TVs this year. LED TVs have been a bit plagued by the issue. "the problem results from a technological breakthrough in LED backlighting." In no time, our stories got picked up by the likes of Forbes, Foxnews, Gizmodo, TechCrunch, Engadget, The Verge, Macrumors, and many others. PiunikaWeb started as purely an investigative tech journalism website with main focus on ‘breaking’ or ‘exclusive’ news. We shall continue to keep an eye on this Roku lines and update as and when we get more info so stay tuned. ![]() We can only hope that Roku finds a permanent solution to this issue once and for all. In fact, a Roku Forum Moderator has been tending to these user complaints, asking them to provide information that would help Roku track down the issue.Īs such, it is unclear whether the Roku lines issue has been addressed adequately as there still are new reports of the same. This, despite Roku not explicitly acknowledging the issue or noting that this was the bug-fix update. but at least the issue was fixed which i appreciate.Īccording to these users, the 9.4.0 update was the fix to this long-standing issue. the issue was handled poorly, communicated poorly, and even the update itself was confusing and rolled out in a strange manner. This, as new reports on the community forums indicate that users haven’t been facing this issue for a while now. Since then, it looks like Roku fixed this issue at some point. Well, most of these reports are a few months old. I’ve contacted support and so far they’ve given me the usual power cycle/picture audio reset/factory reset steps, but did these help you at all? If not, how did you resolve this issue, if you did? ![]() This only occurs on streaming apps for me as well, and does not occur on HDMI inputs. I just got a TCL 4K Roku and I am experiencing this exact same lines issue. While the above-shown case is a bit on the extreme side of this issue, many users are still facing the same problem, albeit at a much more subtle level.Ī number of them report lines that are a few pixels across that run the entire length or width of their displays when using streaming apps. TV has not been dropped or damaged, and this issue didn’t start until a couple years after purchase. Putting pressure on the frame around the screen doesn’t affect it. Sometimes this issue stops when changing between apps in the Roku menu and the TV can be used as normal until the power is turned off, sometimes the issue is constant and nothing stops it. I’m getting flickering horizontal and vertical lines.
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