LG 55A1 test: the most affordable OLED TV on the market

A word on the marking problems encountered by some users. Very advanced tests have shown that the marking of modern OLED tiles is limited during current use. On the other hand, continuous information channels displaying bands with saturated colors (red, blue or green) can be problematic, especially when the brightness is pushed to the maximum. This risk exists and cannot be completely ignored. It is imperative to turn off the television using the remote control and it is not recommended to disconnect it completely from the current. Indeed, the television performs maintenance operations on the slab when it is on standby in order to preserve uniformity and precisely avoid marking problems. Since 2020, LG uses a fixed logos detection system which automatically reduces their brightness in order to limit the risks. A wallpaper is also triggered very quickly (1 min) when it detects a fixed image.

LG OLED55A1

Manufacturer warranty: 2 years *

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Description

LG OLED55A1 TV OLED 4K UHD 139 cm SMART TV

OLED technology: a unique visual experience.
OLED LG televisions have self-emissive pixels: this display technology radically improves the image.
Indeed the self-emissive pixels are capable of creating an absolute black and colors faithful to reality.
The images are therefore extremely detailed, with a spectacular contrast and the fairer colors.
This exceptional image quality is therefore transcribed whatever the brightness and the program you view .

Smart TV: Unlimited entertainment.
The LG OLED55A1 TV incorporates the Smart TV function and thus brings together all your favorite content in the same place.
Netflix, Disney+, Apple TV, Amazon Prime Video, easily access the flagship streaming applications to satisfy the whole family.

Dolby Vision Vision IQ and Dolby Atmos
In your living room as in the cinema with the LG OLED55A1. With Dolby Vision IQ the image is intelligently adjusted according to the lighting and the contents you view .
To complete the whole, Dolby Atmos immerses you in your entertainment with a three -year surround sound.
A perfect combination for a real cinema excess without leaving your living room.

LG 55A1 test: the most affordable OLED TV on the market

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Summary

Notation history

Writing note

User reviews (0)

• Image quality in SDR and HDR.
• Infinite contrast.
• Vision angles.
• Reactivity.
• Delay in display.
• Reactive webos system.

• Limited brightness peak compared to that of other OLED models.
• Movement compensation engine limited by the 50/60 Hz slab.
• Absence of HDMI 2 compatibility.1 VRR and Allm.

Read the complete conclusion
Technical sheet / Characteristics

Diagonal	55 inches
Definition (pixels)	3840 x 2160 pixels
HD compatibility (1080i/720p)	2160p/1080p/720p
HD Ready certification	Yes
Vision angles (H+V)	178/178
Sound power	2 x 10 W
Connection	3 x HDMI, 2 x USB, Ethernet, 1 x SPDIF, 1 x Helmet, Wi-Fi, Bluetooth
Dimensions (LXHXP)	122.8 x 76.7 x 27.1 cm
Weight	18.7 kg
Kind	Oled
Type of backlight	Oled
HDR compatibility	HDR10, Dolby Vision, HLG
Slab	10 bits
Slab frequency	50 Hz
Repairability	5.6/10
HDMI standard	HDMI 1.4, HDMI 2.0b
Number of HDMI entries	3
Including HDMI 2.1	3

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The LG 55A1 is the most affordable OLED TV on the market. To arrive at such an aggressive price, this model is satisfied with a 50/60 Hz slab and ignores the HDMI 2 connection.1. while retaining the display qualities of the OLED.

Presentation

The LG 55A1 TV has a 55 -inch Oled slab (approximately 140 cm) displaying an ultra HD definition (3840 x 2160 px) limited to a 50/60 Hz refresh frequency. It is simply the first television equipped with an OLED 50 Hz slab; All other OLED models tested in the laboratory have so far been equipped with an OLED 100/120 HZ slab. With the absence of a 100/120 Hz slab, LG logically impasse on the HDMI 2.1 4K 120 Hz. On the other hand, the Allm and the EARC are supported, unlike the VRR which could however be practical. It is also satisfied with two 10 W speakers, when the LG 55B1 has two 10 W speakers supported by two bass boxes. For the rest, the televisions are very close and offer the same remote control and the same webos 6 system.0.

The LG 55A1 is displayed at the price worn by around € 1,000, but it is sometimes found on promotion at € 800, which is very interesting for an OLED model, even limited to 50/60 Hz. It is also available in 48 inch (107 cm), 65 inches (165 cm) and 77 inch (196 cm) versions in respective € 900, € 1450 and € 3500 € (.

This television was bought by Baudouin, a relative of the editorial staff, and it was tested directly in situation. A big thanks to him.

All the brightness and colorimetry measurements mentioned in this article were carried out with a C6-HDR spectracal probe and the Calman Ultimate software.

Image quality

LG 55A1 operates the same OLED slab as 55C1. As on all OLED televisions, each pixel is made up of four sub-pixels (a green, a red, a blue and a white). The white and red subpixels are larger to improve the maximum brightness of the slab, while maintaining a color temperature close to the 6500 k. As it is now a habit with OLED technology, vision angles are excellent. We have measured a loss of brightness of only 16 % at 45 ° and there is no variation on black – which is absolute.

Image quality in Filmmaker mode is simply perfect. The color temperature measured at 6520 K complies with the video standard (6,500 k), with a stable curve on the whole spectrum. The average gamma (2.39, for a target at 2.4) translates the very good level of gray, and the average delta e less than 3 guarantees colors faithful to those of the source. Finally, as always with OLED technology, contrast is considered infinite. Indeed, even with a white calibrated at 150 cd/m², black is measured at 0 CD/m². This contrast is always as impressive and allows you to enjoy all the nuances, even in the full darkness.

If the LG α7 video processor (Alpha 7) Gen 4 is on paper less efficient than α9 (Alpha 9) Gen 4 AI embarked on LG OLED TVs (C1, G1, Z1, etc.), it is clear that it is difficult to see a difference on our test scenes. This α7 processor is doing a very good scaling job. On the other hand, the 50/60 Hz slab clearly limits the performance of the motion compensation engine and the moving image is clearly not as clear as that produced by the other OLED 100/120 Hz televisions like the LG B1, C1 or G1 or even those of other manufacturers. Movement compensation is clearly one of the weak points of this model.

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Hdr

The LG 65A1 TV is compatible with HDR10, HLG and Dolby Vision metadata formats, but it skips HDR10+ promoted by Samsung and Panasonic.

The HDR rendering is good, but there is a notch below the one found on the other HDR televisions of the manufacturer. With a signal at 10,000 cd/m², the reference EOTF curve (in yellow) is perfectly followed up to 70 % of luminance before the TV smooth the curve to the maximum capacity. This is the behavior that we prefer since it allows to keep the details in the light areas. On the other hand, the peak of brightness (476 cd/m²) is much more limited than that which is usually found on OLED models. In comparison, the LG 55C1 reaches 740 CD/m² and the best OLED TV (the PANAOSNIC TX-65JZ2000) exceeds 954 CD/M². With a Delta E less than 3, the colors are however faithful to those sent by the source and correspond to the director of the director. This fairly low peak of brightness is partly compensated by the excellent contrast of OLED technology, which therefore displays good image dynamics. However, the HDR rendering remains a notch behind that of the other brighter OLED models.

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Video games

In game mode, the LG 55A1 has a delay in extremely reduced display measured at only 9.4 ms. There is less than a delay image compared to the source at 60 Hz, and therefore no gap between the action in the controller and its repercussion on the screen. On the remanence side, OLED technology is still unmatched on the market, with a time lower than millisecond, while the best LCD televisions can not do better than 11 ms.

The game mode requires some adjustments to deliver a perfect image. The most important thing is to reduce color temperature at least (image> Advanced parameters> Color> White balance> Color temperature> hot 50). Done, the TV delivers a good image, even in game optimizing mode, whether in SDR or HDR.

The LG 55A1 is satisfied with a 50/60 Hz slab and it therefore ignores the support of the HDMI 4K 120 Hz useful with the new game consoles Xbox Series S/X and PS5. It is also happening with variable refresh ratius compatibility which – even if it would have worked only between 48 and 60 Hz – is rather useful to avoid the tearing of the image. On the other hand, the TV is compatible with the HDMI 2.1 ALLM (Auto Low LateNcy Mode) which allows automatic passage in game mode when a console is detected and with the EARC for a loss audio return.

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Cloud

As on all OLED TVs on the market, each pixel is managed individually and there is therefore no cloud. The effects of banding (horizontal or vertical bands) are also absent. The homogeneity of the brightness on the slab is excellent: we have measured the average gap of homogeneity of white on the whole of the 55 -inch panel at only 6 %. This very good result is still explained by the use of OLED technology.

A word on the marking problems encountered by some users. Very advanced tests have shown that the marking of modern OLED tiles is limited during current use. On the other hand, continuous information channels displaying bands with saturated colors (red, blue or green) can be problematic, especially when the brightness is pushed to the maximum. This risk exists and cannot be completely ignored. It is imperative to turn off the television using the remote control and it is not recommended to disconnect it completely from the current. Indeed, the television performs maintenance operations on the slab when it is on standby in order to preserve uniformity and precisely avoid marking problems. Since 2020, LG uses a fixed logos detection system which automatically reduces their brightness in order to limit the risks. A wallpaper is also triggered very quickly (1 min) when it detects a fixed image.

Reflectance

The LG 55A1 uses the same filter as the other OLED TV. This filter is particularly effective to dilute the parasitic lights when you are in front of the screen. The further we move away from the center, the more efficiency decreases. Only a handful of very high-end LCD televisions manages to do better, in particular the Samsung Qe65q85r-a real reference on the market-, but also the Sony 8K XR-75Z9J.