Highlights
Key Specs
Display TypeOLEDResolution4K (2160p)Screen Size Class77 inchesHigh Dynamic Range (HDR)YesHigh Dynamic Range FormatDolby Vision, HDR 10, Hybrid Log-Gamma (HLG)Refresh Rate120HzOLED TechnologyStandard OLEDSpecific Manufacturer Technologiesα8 AI ProcessorSmart PlatformwebOSFeatured Streaming ServicesNetflix, HBO Max, Disney+, YouTube, Prime Video, ESPN+, Apple TV+, Sling TVNumber of HDMI Inputs (Total)4TV Tuner TypeATSC, Clear QAMWorks WithAmazon Alexa, Google Assistant, Apple HomeKitVoice Assistant Built-inAmazon Alexa
General
Product Name77" Class B4 Series OLED 4K UHD Smart webOS TVBrandLGModel NumberOLED77B4PUASeriesOLED 4K - B4Model Year2024
Dimension
Product Height With Stand41.6 inchesProduct Width67.7 inchesProduct Depth With Stand12.6 inchesProduct Height Without Stand38.9 inchesProduct Depth Without Stand2 inchesProduct Weight With Stand51.8 poundsProduct Weight Without Stand50.5 poundsStand Width55.2 inchesStand Depth12.6 inchesAdjustable Stand WidthNo
Box Dimension
Height44.5 inchesWidth74.8 inchesDepth7.9 inchesCubicDimension26296 inches
Display
Display TypeOLEDResolution4K (2160p)Screen Size77.8 inchesScreen Size Class77 inchesHigh Dynamic Range (HDR)YesHigh Dynamic Range FormatDolby Vision, HDR 10, Hybrid Log-Gamma (HLG)Picture Quality Enhancement TechnologyCinema HDRCurved ScreenNoRefresh Rate120HzMaximum Contrast Ratio (Native)InfiniteClosed CaptioningYes3D TechnologyNoOLED TechnologyStandard OLEDSynchronization TechnologyG-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync (AMD Adaptive Sync)
Feature
Remote Control TypeMagicSpecific Manufacturer Technologiesα8 AI ProcessorSmart CapableYesSmart PlatformwebOSFeatured Streaming ServicesNetflix, HBO Max, Disney+, YouTube, Prime Video, ESPN+, Apple TV+, Sling TVScreen MirroringYesScreen Mirroring TechnologyApple AirPlay 2, ChromecastContent SharingMobile to TVIndoor Or Outdoor UseIndoorTV/DVD ComboNoText-To-SpeechYesVideo DescriptionYesV-ChipNoTV TunerDigital
Connectivity
Number of HDMI Inputs (Total)4Number of HDMI 2.1 Inputs4HDMI Audio Return Channel (ARC)YesNumber Of USB Port(s) (Total)2Number of USB 2.0 Ports2Number of USB 3.0 Ports0Ethernet Port(s)YesRF Antenna InputYesBluetooth EnabledYesBluetooth Version5.1Network CompatibilityBuilt-in Wi-Fi, EthernetNumber of RS-232 Inputs0Headphone JackNoTV Tuner TypeATSC, Clear QAMNumber of Digital Optical Audio Outputs1Number of Analog Audio Outputs0Number of Component Video Inputs0Number of Composite Video Inputs0Number of DVI Inputs0Number of VGA Ports0
Compatibility
VESA Wall Mount Standard300mm x 200mmWorks WithAmazon Alexa, Google Assistant, Apple HomeKitVoice Assistant Built-inAmazon Alexa
Audio
Built-In SpeakersYesBuilt-in Speaker TypeDownward firingSurround Sound SupportedDolby AtmosSpeaker Output20 wattsNumber of Audio Channels2.0
Power
ENERGY STAR CertifiedYesEPEAT QualifiedNoEstimated Annual Operating Cost36 United States dollarsEstimated Annual Electricity Use296 kilowatt hoursRechargeable Battery (Remote Control)NoBattery Size (Remote Control)AANumber Of Batteries Required (Remote Control)2Number of Batteries Included (Remote Control)2Battery Type (Remote Control)Alkaline
Included
Wall Mount IncludedNoStand IncludedYes
Warranty
Manufacturer's Warranty - Parts1 Year LimitedManufacturer's Warranty - Labor1 Year Limited
Other
UPC195174077221
The LG OLED B4 is a premium watching experience that offers more than meets the eye. Entertainment extras like Dolby Vision, Dolby Atmos¹ and FILMMAKER MODE give you the big-picture experience straight from your couch. Enjoy outstanding picture powered by the α8 AI Processor, which uses AI to detect what you're watching and automatically improves the picture and sound quality of whatever you're watching. Search less and stream more, thanks to the next generation of AI technology from LG webOS 24. With Quick Cards, group your favorite apps into categories and even have instant access to over 300 free channels with LG Channels.² All LG OLED TVs have NVIDIA G-Sync, AMD FreeSync Premium and VRR to further improve gaming quality. And four HDMI 2.1 inputs allow you to plug in all the devices you need for the win. Whether you game on consoles or on the cloud,³ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
Self-lit Pixels
LG's flagship OLED technology creates an incredible watching experience and stellar picture quality illuminated with over 8 million self-lit pixels. Take in rich and accurate colors from the brightest to darkest parts of the scene thanks to 100% Color Volume⁴and with 100% Color Fidelity.⁵
Dolby Vision, FILMMAKER MODE and Dolby Atmos
Experience the magic of the big screen right from your couch. Every LG OLED comes loaded with Dolby Vision for extraordinary color, contrast and brightness, plus Dolby Atmos¹ for sound you can feel all around you. Land in the center of the action with FILMMAKER MODE, allowing you to see films just as the director intended.
α8 AI Processor
No more fiddling with picture settings. The α8 AI Processor 4K with AI Picture Pro identifies the type of content you're watching to automatically select the ideal setting and fine-tune the picture for the best watching experience and with Multi View with 2 screens lets you split your screen into two unique views so you can watch even more than before.⁶
webOS 24 & LG Channels
No matter which TV you choose, your LG TV makes it easier than ever to find what you need and more. Browse all your favorite streaming apps and let LG Channels connects you to 300+ free channels of sports, fitness, cooking and more⁷.
NVIDIA G-Sync & AMD FreeSync Premium
LG OLED B-Series comes with everything you need to win. NVIDIA G-Sync, AMD FreeSync Premium and VRR to further improve gaming quality. Four HDMI 2.1 inputs allow you to plug in all the devices you need. Whether you game on consoles or on the cloud,⁸ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
Always Ready
When you're not watching, display paintings, photos and other content to blend the LG OLED B4 into your surroundings.
Learn more about legal disclaimers .
What's Included
77" Class B4 Series OLED 4K UHD Smart webOS TV
Table Top Stand
Magic Remote (MR24)
Remote Control Batteries (2)
Power Cable (attached)
Quick Start Guide
Legal Disclaimers
- ¹Dolby, Dolby Vision, Dolby Atmos, and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation. Manufactured under license from Dolby Laboratories. Confidential unpublished works. Copyright © 2012–2024 Dolby Laboratories. All rights reserved.
- ²Internet connection and subscriptions to streaming services are required; number of LG Channels subject to change.
- ³Subscription and compatible gaming controller are required.
- ⁴Display Color Gamut Volume (CGV) is equivalent or exceeds the CGV of the DCI-P3 color space as verified independently** by Intertek.
- ⁵Third-party testing conducted by Intertek showed the color fidelity of the display is 100% based on CIE dE 2000 color difference metric calculated for 125 color patches distributed across the entire color volume. Color difference (Delta-E) value was less than 2 for each of the 125 color patches.
- ⁶Multi View may display 1-HDMI input, screen share, or select apps.
- ⁷Internet connection and subscriptions to streaming services are required; number of LG Channels subject to change.
- ⁸Subscription and compatible gaming controller are required.
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