|DESIGN||SPECIFICATIONS||PICTURE QUALITY||SOUND QUALITY||SMART FEATURES|
The LG OLED55C8PUA Picture Quality is a great 4k OLED TV with excellent picture quality. The emissive technology allows it to produce perfect blacks, which is excellent for dark rooms. The image also remains accurate when viewed at an angle, which is great for those with wide seating. It performs well with HDR content, as it can produce very bright and saturated highlights. The motion handling and input lag are also excellent, so it feels very responsive to gamers or PC users. It isn’t perfect though, as the brightness changes depending on the screen content and static images shouldn’t be shown for long on the TV due to temporary image retention and the risk of burn-in.
Excellent picture quality on the LG OLED C8. The infinite contrast ratio delivers perfect blacks, making this an excellent TV for watching movies in a dark room. The good wide viewing angle and excellent reflection handling make this an excellent TV even for large, bright rooms. HDR highlights are very bright and stand out. The wide color gamut makes colors pop in HDR, and the pre-calibrated levels are good enough for most viewers. Excellent gray and black uniformity, the OLED C8P is an excellent TV for Sports.
The LG C8 is an OLED panel, and as such has an infinite contrast ratio since individual pixels can be turned off. This results in perfect blacks when viewed in a dark room, great for Horror or Sci-Fi fans.
There is no need for local dimming on an OLED screen like the C8, as there is no backlight. This video is for reference only.
SDR Peak Brightness
Good SDR peak brightness on the C8P, almost identical to last year’s C7. Real scene brightness is bright enough for most rooms. Highlights do not stand out in SDR. The TV remains consistent at ~350 cd/m² except when showing a large bright scene, like our 100% test window, where the screen dims significantly due to the Automatic Brightness Limiter(ABL).
With an ‘OLED Light‘ setting of 40 or less, the fluctuations between scenes due to ABL drops to 20 cd/m² or less.
HDR Peak Brightness
Good HDR Peak Brightness, slightly brighter than last year’s E7P and much brighter than Sony’s A1E, especially when showing small highlights. Real scene HDR Brightness is very good, but still short of the 1000-4000 cd/m² HDR is mastered for. Large bright scenes are very dim due to the Automatic Brightness Limiter(ABL).
Excellent gray uniformity on the C8. There are some very faint vertical lines visible on our 50% test, these are mostly visible in very dark uniform scenes. Only slight dirty screen effect in the center, which is good for watching sports.
Very good viewing angle on the LG C8PUA, as is typical of OLED screens. Black levels remain perfect regardless of viewing angle. Colors shift when viewing off access, but the shift is not as severe as other TVs like the Samsung Q8C. This TV is a great fit for a large room with side seating.
Color Shift : 28 ° Brightness : 64 ° Black Level : 75 °
The OLED55C8PUA has perfect black uniformity, with no clouding due to its ability to turn off black pixels. This TV is especially well suited to watching movies in a dark room.
The C8 has excellent reflection handling. The glossy screen results in very defined reflections, but at a very low intensity. The anti-reflective coating gives reflections a purple tint, similar to other high-end TVs like the E7 and Q8C. The results are excellent and there should be no issues using this TV in a bright room.
The most accurate results before calibration were on the ‘Expert (Dark Room)‘ picture mode, with the Gamma setting changed to 2.2. Out of the box, the color accuracy and white balance are good, although the temperature is a bit warm so the colors are shifted a bit yellow.
Excellent color and white balance dE after calibration, better than the C7 and Samsung’s Q9F. While the calibration out of the box was already very good, after calibration the colors were nearly perfect. Gamma follows our target almost perfectly.
The C8 upscales older 480p content well. The resulting image quality is not overly sharp.
There are no issues on the C8 upscaling 720p content.
The C8 upscales 1080p content played from a Blu-ray or game console well. There were no obvious issues.
Native 4k input is displayed as intended.
Excellent coverage of the P3 color space, nearly identical to the C7 and E7 from 2017.
The HDR EOTF in the ‘Technicolor Expert‘ picture mode follows our target PQ curve very well until it rolls off at the TV’s peak brightness. The EOTF in ‘PC’ and in ‘Game’ are very similar to that of ‘Technicolor Expert‘, although ‘Game‘ is brighter than the other two.
When displaying HDR content in ‘PC Mode‘ colors appear washed, the C8PUA does not detect the wide color gamut and the setting cannot be changed.
Decent color volume, similar to last year’s C7 and B7A, but much worse than the Samsung QLEDs. The C8 has decent coverage of the P3 color space, but is unable to produce overly bright, saturated colors. This will be noticeable in bright outdoor scenes when watching Movies or TV Shows.
The LG C8 displays our test gradient smoothly with no significant banding. In certain scenes there is some banding noticeable in large areas of similar color. This can be reduced by enabling ‘MPEG Noise Reduction‘, which toggles the gradient smoothing feature of the C8. This reduces the visible banding but also results in a loss of fine detail.
Temporary Image Retention
The C8 shows some signs of image retention even after 4 minutes of recovery time.
This test is only indicative of short term image retention and not the permanent burn-in that may occur with a longer exposure to static images. We are currently running a test to help us better understand permanent burn-in.
Note: There is some variation between panels even of the same model. Some panels may be more or less prone to image retention.
Permanent Burn-In Risk
OLED TVs such as the LG C8 have an inherent risk of experience permanent image retention. The LG C8 has three features to help mitigate burn-in. We recommend enabling the ‘Pixel Refresh’ and ‘Screen Shift’ options and setting‘Logo Luminance Adjustment’ to ‘Low’
With WRGB OLEDs all four subpixels are never on at the same time, so we have two photos. Alternative pixel picture.