1-on-1 Comparison

Side-by-Side Comparison

LG OLED77CX9LA (German version)

SCORE:
94
Image cannot be found

Highlights

  • 4K UHD (3840 x 2160) OLED Display
  • HDR10, Dolby Vision, HLG support
  • Perfect Color
  • Perfect Viewing Angle
  • α9 Gen3 AI Processor 4K
  • Ethernet, Wi-Fi, Bluetooth

Disclosure: We earn money from the affiliate links to products associated with content in this article.

Content

Overview

LG OLED77CX9LA was introduced in 2020. It has a OLED screen with 4K UHD (3840 x 2160) resolution and 100 Hz/120 Hz refresh rate. The TV is HDR compatible and can reach 750 nits of peak brightness. It supports HDR10, Dolby Vision and HLG. AMD Freesync™ allows TV to display variable refresh rate during gaming and its powerful α9 Gen3 AI Processor 4K picture processor guarantees a high quality upscaling of any low resolution source to 4K UHD (3840 x 2160).

We give LG OLED77CX9LA TV 94 overall score out of 100. Our ranking system is based on the display specifications, video, audio and other features, connectivity and format support.

DISPLAY
92
VIDEO FEATURES
96
AUDIO FEATURES
92
OTHER FEATURES
100
CONNECTIVITY
95
FORMAT SUPPORT
87
OVERALL
94

Pros and Cons

In this section we highlight pros and cons of LG OLED77CX9LA.

PROS
  High Resolution
  High Refresh Rate: 100 Hz/120 Hz
  Pixel Level Dimming
  Perfect Viewing Angle
  Color Depth
  HDR10
  Dolby Vision
  Dolby Vision IQ
  HLG
  AMD Freesync™
  NVidia G-Sync
  4K HFR
  2K HFR
  VRR
  HGIG Compatibility
  α9 Gen3 AI Processor 4K
  Filmmaker Mode
  Dolby Atmos
  AI Sound
  WiSA Ready
  Bluetooth Audio Playback
  Wi-Fi
  Wi-Fi Direct
  Bluetooth
  Works with Alexa
  New HDMI 2.1
  HDCP 2.3
CONS
  No HDR10+
  No IMAX Enhanced
  No DTS Digital Surround

Predecessor

A predecessor of 2020 CX series is 2019 C9 series. In this section we show their comparison.

UPGRADES LG OLED77CX9LA vs LG OLED77C9PLA
Dolby Vision IQ vs
AMD Freesync™ vs
NVidia G-Sync vs
VRR vs
HGIG Compatibility vs
More Powerful Picture Processor α9 Gen3 AI Processor 4K vs α9 Gen2 Intelligent Processor
Filmmaker Mode vs
AI Picture AI Picture Pro vs
Auto Genre Selection SDR/HDR/Dolby HDR vs
Face Enhancing AI Picture Pro - Face Enhancing vs
Image Enhancing Image Enhancing on SQM vs
AI Sound AI Sound Pro vs
Clear Voice Clear Voice IV vs Clear Voice III
HDCP Version 2.3 vs 2.2
Composite Inputs 1 via A/V 3.5mm Jack vs
RS-232C Remote 1 (Mini Jack) vs
On-Screen Display Languages 37 vs 36
AVI vs
AC4 vs
EAC3 vs
MP2 vs
Higher Energy Efficiency Class A+ vs A

DOWNGRADES LG OLED77CX9LA vs LG OLED77C9PLA
Advanced HDR by Technicolor® vs
Depth Enhancement [a] vs Object Depth Enhancer
DTS Digital Surround vs DTS-HD
OGG vs
RealAudio vs

For this comparison we chose 77" version of the predecessor - model OLED77C9PLA. For more detailed comparison between the two please visit LG OLED77CX9LA vs LG OLED77C9PLA where you can also choose different size and country models to compare.

Selected Features

OLED Display

LG OLED77CX9LA has an organic light-emitting diode (OLED) display. This is a self-emissive display which can completely turn off individual pixels leading to the ideal black levels and better contrast during HDR compared to any LCD displays. This makes them to be the best choice for dark rooms. OLED enables a simpler internal structure than conventional displays. With just a few layers, OLED TVs are very lightweight and thin. OLED displays also have better viewing angles. However, they are not able to achieve such high brightness as modern LCD displays which makes them less suitable in bright rooms.

HDR10

LG OLED77CX9LA supports HDR10 which was announced on August 27, 2015, by the Consumer Technology Association and uses the wide-gamut Rec. 2020 color space. It is not backward compatible with SDR. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 is technically limited to a maximum of 10,000 nits of brightness and uses 10-bit color which corresponds to 1024 shades of the primary RGB colors.

Dolby Vision

This TV also supports Dolby Vision which is an update to HDR10 by adding dynamic metadata that can be used to more accurately adjust brightness levels up to 10,000 nits maximum brightness on a scene-by-scene or frame-by-frame basis and support up to 12-bit color depth (4096 shades of RGB) and 8K resolution.

Specifications

In this section we present all the features and specifications available for LG OLED77CX9LA.

BASICS
BrandLG
SeriesCX
ModelOLED77CX9LA
Size77"
CountryGermany
Release Year2020
Bezel ColorBlack
Smart TV
DISPLAY
Display TypeOLED
Actual Size (Diagonal)76.7"
Resolution4K UHD (3840 x 2160)
Refresh Rate100 Hz/120 Hz
Screen DesignFlat
Backlight DimmingPixel Level Dimming
Backlight NameSelf-illuminating pixels (no backlight)
ContrastInfinite Contrast
ColorPerfect Color
Viewing AnglePerfect Viewing Angle
Panel Bit Depth10 bits
Color Depth1.07 Billion
Rec.2020 Color Space Coverage75%
DCI P3 Color Space Coverage98%
Peak Brightness750 nits
Contrast Ratio
Minimum Response Time1 ms
Input Lag13 ms
VIDEO
3D Capability
HDR10
HDR10+
Dolby Vision
Dolby Vision IQ
HLG
Advanced HDR by Technicolor®
IMAX Enhanced
4K HDRCinema HDR
HDR Effect 4K/2K
AMD Freesync™
NVidia G-Sync
4K HFR
2K HFR
VRR
HGIG Compatibility
Picture Processorα9 Gen3 AI Processor 4K
UpscalingAI 4K Upscaling
BlacksPerfect Black
Frame Interploation TechniqueTruMotion 240
Frame Interpolation Frequency240 Hz
Black Frame Insertion OLED Motion Pro
Filmmaker Mode
Auto Low Latency Mode
AI Picture AI Picture Pro
Auto Genre Selection SDR/HDR/Dolby HDR
Face EnhancingAI Picture Pro - Face Enhancing
Image Enhancing Image Enhancing on SQM
Color Enhancer Advanced Color Enhancer
Noise ReductionQuad Step Noise Reduction
Deep Learning AI Picture
AI Brightness
True Color Accuracy Pro
Ultra Luminance Pro
SharpnessFrequency based Sharpness Enhancer
Dynamic Tone MappingHDR Dynamic Tone Mapping Pro
AUDIO
Speaker Channels2.2 Channel
Speaker Power Rating40W (WF:20W, 10W per Channel)
Bluetooth Headset Support
Dolby Atmos
DTS Digital Surround
AI Sound AI Sound Pro
Surround ModeOLED Surround
Clear VoiceClear Voice IV
WiSA Ready Separate Dongle Purchase Required
Bluetooth Audio Playback
LG Sound Sync
Smart Speaker Compatible
LG Smart Speaker
CONNECTIVITY
Ethernet Input
Wi-Fi
Wi-Fi Direct
Wi-Fi Frequency2.4 GHz, 5 GHz
Wi-Fi Protocol802.11a/b/g/n/ac
Bluetooth
Bluetooth Version5.0
Mobile Connectivity
Apple Airplay Airplay 2
LG TV Plus App
Smart ThinQ App
Chromecast
Google Home
Virtual Assistant Google Assistant
Works with Alexa Alexa Built-In
HDMI Inputs4
HDMI Version2.1
HDMI Audio Return Channel (ARC) eARC (HDMI 2)
HDCP Version2.3
HDMI-CEC SIMPLINK
USB Inputs3
USB 3.0 Ports
RF (Terrestrial / Cable ) Inputs3
Component Inputs
Composite Inputs1 via A/V 3.5mm Jack
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote1 (Mini Jack)
DLNA
OTHER
CPU Cores4
GPU Cores2
Operating SystemwebOS
Internet Browser Full Web Browser
Application Store LG Content Store
Teletext Flof
Teletext Page2000 page
On-Screen Display Languages37
LG AI ThinQ®
Speech to Text
LG Voice Search
Amazon Echo Compatible
AI UX
AI Home
AI RecommendationDefault: off
Intelligent Edit
Home Dashboard
Auto Device Detection
Apple HomePod
Voice Recognition Intelligent Voice Recognition
Magic LinkDefault: off
Audio Guidance (Text To Speech)
Gallery Mode
Multi-view
DIAL
360 VR
Mobile TV On
Wi-Fi TV On
Bluetooth Low Energy On
Instant Game Response VRR/ALLM
Screen Share
Time Shift
Auto Calibration
Time Machine (DVR)
HEVC 4K@120p, 10bit
VIDEO FORMATS
3GPP
AV1 4K@60p, 10bit
AVI
ASF
DivX
Flash Video
H.263
H.264
H.265
MKV
M2TS
MP4
MPEG-4
QuickTime
RealVideo
TS
VC-1
VP7
VP8
VP9 4K@60p, 10bit
VOB
VRO
WebM
WMV
Xvid
AUDIO FORMATS
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV
IMAGE FORMATS
BMP
GIF
JPEG
JPS
MPO
PNG
TUNER
Digital Tuner 2
SAT Tuner
Analog TunerPAL/SECAM, B/G, D/K, I, SECAM L
Digital Terrestrial TV SystemDVB-T/T2
Digital Cable TV SystemDVB-C
Digital SAT TV SystemDVB-S/S2
Color systemPAL / SECAM / NTSC
CI+CI+ 1.4
GENERAL
Energy EfficiencyA+
Power SupplyAC 100-240 V, 50/60 Hz
Power Consumption (Typical)172 W
Power Consumption (In Standby)0.5 W
Dimension Without Stand (W x H x D)1723 x 993 x 56 mm
Dimension With Stand (W x H x D)1723 x 1023 x 269 mm
67.83" x 40.28" x 10.59"
Stand Size1199 x 269 mm / 47.20" x 10.59"
Dimension of Package (W x H x D)1895 x 1130 x 285 mm
74.61" x 44.49" x 11.22"
One Connect Box
VESA Wall Mount
VESA Hole Pitch (W x H)400 mm x 200 mm
Weight Without Stand26.7 kg / 58.86 lbs
Weight With Stand35.9 kg / 79.15 lbs
Weight of Package (Gross)49.3 kg / 108.69 lbs
ACCESSORIES
RemoteMagic Remote Control - MR20
Universal Control Capability for remote
Magic Remote Control Compatible

Successor

The 2020 CX series has a successor - 2021 C1 series. Let us now display the changes that the successor brought.


UPGRADES LG OLED77C19LA vs LG OLED77CX9LA
Higher Peak Brightness 760 nits vs 750 nits
More Powerful Picture Processor α9 Gen4 AI Processor 4K vs α9 Gen3 AI Processor 4K
Face Enhancing AI Picture Pro - Face Enhancing vs AI Picture Pro - Face Enhancing
Clear Voice Clear Voice Pro vs Clear Voice IV
VP8 vs

DOWNGRADES LG OLED77C19LA vs LG OLED77CX9LA
Higher Input Lag 14 ms vs 13 ms
Less RF (Terrestrial/Cable) Connection Inputs 1 vs 3
Composite Inputs vs 1 via A/V 3.5mm Jack
RS-232C Remote vs 1 (Mini Jack)
Lower Energy Efficiency Class G vs A+

For this comparison we chose 77" version of the successor - model OLED77C19LA. For more detailed comparison between the two please visit LG OLED77CX9LA vs LG OLED77C19LA where you can also choose different size and country models to compare.

Amazon Affiliate Disclosure

ZKelectronics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon (.com, .co.uk, .ca, etc) and any other websites that may be affiliated with Amazon Service LLC Associates Program.