OLED48B4PSA

48 Inch LG OLED AI B4 4K Smart TV 2024

Front view with LG OLED TV, OLED B4, 11 Years of world number 1 OLED Emblem and webOS Re:New Program logo on screen with 2-pole stand
The images used in the product overview below are for representative purposes. Refer to the image gallery at the top of the page for an accurate representation.

A masterpiece perfected by time-honed expertise

Years of commitment to innovation can't be imitated overnight. The world-leading OLED's uniquely tailored alpha chipset elevates the viewing experience to new heights.

*Screen images simulated.

A gold emblem of World's number 1 OLED TV for 11 Years against a black backdrop. A spotlight shines on the emblem, and gold abstract stars fill the sky above it.
The World's No.1

11 years later,
still on top

Our reign as the world's favorite OLED continues.

*Omdia. 11 years of NO 1 regarding most sold units 2013-2023. This result is not an endorsement of LGE or its products. Visit https://www.omdia.com/ for more details.

What makes LG OLED AI stand apart?

LG's alpha 8 AI Processor on top of a motherboard, emitting orange bolts of light. OLED TV with the OLED Care menu is selected in the support menu that is up on the screen. The slimline design in a side of view as it is placed flat against the wall in a modern living space.

alpha 8 AI Processor

Definitive intelligence at its core

The alpha 8 AI Processor chip redefines OLED with refinements that add transformative yet lifelike detail.

LG's alpha 8 AI Processor barely visible amidst darkness. The AI Processor lights up green, and colorful bolts of light shoot out from it. More bolts appear across the motherboard, stretching further, and white dots like stars come into view, creating the impression of an intergalactic scene.

Below there are specification of alpha 8 AI processor compared to alpha 5 AI Processor. alpha 8 has 1.5X faster AI performance, 2.3X improved graphics, 1.8X faster processing speeds.

*Comparison is based on a conventional TV with alpha 5 AI Processor.
**Screen images simulated.

Intelligence that refines the OLED experience

LG OLED in a modern living space displaying a musical performance on screen. Blue circular waves depicting personalization surround the TV and space. A woman with piercing blue eyes and a burnt orange top in a dark space. Red lines depicting AI refinements cover part of her face, which is bright and detailed, while the rest of the image looks dull. LG OLED TV as sound bubbles and waves emit from the screen and fill the space.

AI Customization

Syncs with how you watch

A picture tailored to your taste

Select your favorite images, and AI Picture Wizard creates a picture tailored exactly to your unique taste from 85 million possibilities, then saves it to your profile.

LG OLED TV in a modern city apartment. A grid overlay appears over the image like a scan of the space, and then blue soundwaves project from the screen, perfectly filling the room with sound.
AI Acoustic Tuning

The optimal audio fits your space

The sound system detects the layout of your room and where you're sitting to create a dome of sound around you, perfectly tuned to your room's unique acoustics.

Intelligence that's bright in any light

Come day or night, Brightness Control detects the light in your space and balances the picture accordingly for crisp and clear visuals.
LG OLED TV in a modern living space in nighttime. The screen image of the aurora borealis is displayed with the ideal brightness levels.

Night

LG OLED TV in a modern living space in daytime. The screen image of the aurora borealis is displayed with the ideal brightness levels.

Day

AI Picture Pro

Insane realism with authentic charm

AI Super Upscaling

AI fine-tunes the resolution

After classifying the frame, AI Noise Reduction and AI Super Resolution realistically elevate scenes.

*Screen images simulated.

AI Sound Pro

Hear every detail of the soundscape

Lifelike audio soars through your space

Experience the insane immersion of an all-encompassing 9.1.2 virtual surround sound system.

LG OLED TV as sound bubbles and waves emit from the screen and fill the space.

*Screen images simulated.
**Must be activated through the sound mode menu.
***Sound may vary according to the listening environment.

SELF LIT OLED 4K

Backlight-free brings boundless beauty

Rather than relying on an additional backlight, LG OLED's self lit pixels illuminate independently. The result is true-to-life color, perfect blacks that never gray, and a picture beyond compare. With Eye Comfort Technology's low-blue light, flicker-free, and discomfort glare-free certifications, watch for longer without eye strain.

*Screen images simulated.

Endless contrast creates infinite impact

Scenes burst boldly into life where the darkest shadows and brightest lights intertwine.

The Milky Way fills the night sky above a canyon scene. Above the image, "gray is not black" is written in white block capitals against a black backdrop. The screen is split into two sides and marked "Others" and "LG OLED." The other side is noticeably dimmer and lower in contrast, whereas the LG OLED side is bright with high contrast. The LG OLED side also features Discomfort Glare Free certification.

*Screen Images simulated.
**’Others’ refers to it as a non-glossy OLED.
***LG OLED TV panels are certified Discomfort Glare Free by UL based on the Unified Glare Rating (UGR) evaluation method.
****Verification issued when UGR is less than 22 when watching TV between 70 lux and 300 lux.
*****LG OLED display only applied to C4, B4, and CS4 was verified by UL for perfect black measured to IDMS 11.5 Ring-light Reflection standards.

A bustling city scene in the early evening with bold colors and contrast.

100% Color Fidelity & Volume

Scenes shine with lifelike colors

100% color volume boosts rich hues, while 100% color fidelity preserves shades without distortion.

*LG OLED Panel is certified by Intertek for 100% Color Fidelity measured to CIE DE2000 with 125 color patterns.
**Display Color Gamut Volume (CGV) is equivalent or exceeds the CGV of the DCI-P3 color space as verified independently by Intertek.

OLED TV is standing on the right side of the image. The Support menu is up on the screen, and the OLED Care menu is selected.
OLED Care

Boost the longevity of your OLED

Relax more and enjoy more with integrated panel care that keeps your screen like new for longer.
LG OLED TV, OLED B4 on the wall of a neutral living space showing a colorful photo of a sunset over the ocean.
Slimline Design

Clean lines create a slick impression

A bottom corner of LG OLED TV, OLED B4's stand on top of a marble surface. A pale blue wave is on the screen.   LG OLED TV, OLED B4 on a stand in a minimalist space.

As close as it gets

Incredibly slim lines keep your attention on the whole screen with no distractions while blending beautifully with your home interiors.

*Bezel size differs by series and size.

Vast Size Range

Sized to fit every life

Discover a size for every space and taste with a lineup ranging from 48" to 77".

Comparing LG OLED TV, OLED B4's varying sizes, showing OLED B4 48", OLED B4 55", OLED B4 65", OLED B4 77".

webOS 24

Make your TV experience yours

Experience TV that's made for you with My Profile, AI Picture Wizard, AI Concierge, and Quick Card.

*Supported menus and apps may vary by country and be different upon release.
**Keyword recommendations vary according to the app and time of day and are only provided in countries that support NLP in their native language.
***Screen images simulated.

The webOS logo hovering in the center on a black background, and the space below is illuminated with the logo colors of red, orange, and yellow. The words "webOS Re:New Program" are below the logo.

webOS Re:New Program

Every year, a new TV for 5 years

It's always as fresh as new, even as we add new features and convenience.

Five rectangles in different colors are staggered upwards, each labeled with a year from "webOS 24" to "webOS 28". Upward-pointing arrows are between the rectangles, labeled from "Upgrade 1" to "Upgrade 4".

*The webOS Re:New Program supports a total of four upgrades over five years, the threshold is the pre-installed version of webOS, and upgrade schedule varies from month-end to year-start.
**Updates and the schedule to some features, applications, and services may vary by model and region.
***Upgrades available for 2023 include UHD and above models.

Your TV knows what you love

*Screen images simulated.
**Reduced or limited content may be shown depending on region and network connectivity.
***An unlimited number of profiles can be created however the home screen will only display up to 10 profiles.
****Supported features, menus, and apps above may vary by country and upon release.
*****For you keyword' in AI Concierge can only be provided in countries that support NLP in their native language.
******Keyword recommendations vary according to the app and time of day.
*******Always Ready feature is available with LG OLED M4, G4, C4, CS4, B4, QNED99, QNED90, QNED89, QNED85, and 86NANO80.
********Google Calendar service will be supported later this year.

An LG Magic Remote with the middle circular button, as neon purple light emanates around the button to highlight them. A soft purple glow surrounds the remote on a black background.
Magic Remote

The magic is in your hands

Free yourself from the constraints of old-fashioned buttons. LG Magic Remote unlocks all the smart functionality of your LG TV with a click, scroll, or your voice.

*The functions and features in Magic Remote may vary by region and language.

An LG TV displays a movie, and the screen is divided so one half shows a movie and one side shows Spotify. The cursor clicks a button to bring up the Multi View settings panel and clicks the Live TV button, and the Spotify window changes to live sports coverage.
Multi View

Multiply your view,
multiply your fun

When one screen isn't enough, split it into 2-4 segments. Use your TV as a dual monitor for your PC, or add more screen to search on the web and to watch in PiP at the same time.

*Screen images simulated.
**Picture and sound settings on both screens are the same.
***Support for 2 screen / 4 screen mode varies by model and country. (3&4 screen mode is available only with M4 and G4 series.)

Get total connectivity from your TV

*Screen images simulated.
**Apple, the Apple logo, Apple TV, AirPlay and HomeKit are trademarks of Apple Inc., registered in the U.S. and other countries.
***Support for AirPlay 2, HomeKit, Chromecast Built-in, and may vary by region, and language.
****LG supports 'Matter' Wi-Fi devices. 'Matter' supported services and features may vary depending on the connected devices. Initial connection for ThinQ and Matter should be via ThinQ mobile app.
*****Use of the hands-free voice function without a remote control is only possible with the alpha 9 AI Processor and may vary depending on products and regions.
******Chromecast built-in service may not yet be available at the time of purchase of OLED CS4, but you will be able to enjoy the service after installing webOS software updates.

A rich array of content ready to watch

*Screen images simulated.
**Available content and apps may vary by country, product, and region.
***Separate subscription and its related entities are required for Netflix, Disney+, Amazon Prime, and Apple TV+.
****Apple, the Apple logo, and Apple TV are trademarks of Apple Inc, registered in the U.S. and other countries.
*****Amazon, Prime Video and all related logos are trademarks of Amazon.com, Inc. or its affiliates.

Tune into cinematic marvels and arcade fun

Dolby Vision & FILMMAKER Mode

Authentic movie scenes burst into life

Transform movie night. Dolby Vision's ultra-vivid picture comes together with the support of FILMMAKER MODE™ to preserve the director's intention, optimizing the picture quality while ensuring no distortion or over-processing.

A director in front of a control panel editing the movie "Killers of the Flower Moon" on an LG OLED TV. A quote by Martin Scorsese: "For home viewing, every film should be seen in filmmaker mode," overlays the image with the "Killers of the Flower Moon" logo, Apple TV+ logo, and a "coming soon" logo. Dolby Vision logo FILMMAKER MODE™ logo

*Screen images simulated.
**FILMMAKER MODE is a trademark of UHD Alliance, Inc.

Dolby Atmos

Enticing soundscapes surround you

Hear action surround you with Dolby Atmos's unparalleled clarity, intricate detail, and spatial depth.

A cozy, dimly lit living space, LG OLED TV displaying a couple is using an umbrella, and bright circle graphics surround the room. Dolby Atoms logo in the bottom left corner.

*Screen images simulated.

Director-approved for advanced processing

A black and white still image from an interview with Sean Baker. His name appears in bold orange letters across the bottom of the frame. The phrase LG OLED is in the top left corner, and the word movie is in the top right corner.
A black and white still image from an interview with Lee Sung Jin. His name appears in bold orange letters across the bottom of the frame. The phrase LG OLED is in the top left corner, and the word movie is in the top right corner.
Beef(2023)
A black and white still image from an interview with Hamaguchi Ryusuke. His name appears in bold orange letters across the bottom of the frame. The phrase LG OLED is in the top left corner, and the word movie is in the top right corner.
Evil Does Not Exist(2023)

Anora(2024)

Palme d'Or winner Sean Baker on his influences and inspirations.

Beef(2023)

In conversation with Netflix's Beef director Lee Sung Jin.

Evil Does Not Exist(2023)

Where Ryusuke Hamaguchi crafts his award-winning movies.
Ultimate Gaming

Where fast action never stutters

Gear up for victory with AMD FreeSync Premium, G-SYNC compatibility, 120Hz Mode, and VRR.

A blurry scene of a car driving fast in a racing game. The scene is refined, resulting in smooth and clear action. FreeSync Premium logo and NVIDIA G-SYNC logo in the top right corner.

*Certified for "Excellent Gaming Performance" and response times by Intertek.
**VRR ranges from 40Hz to 120Hz, and is a certified specification of HDMI 2.1.

Controls right where you need them

Don't pause to use Game Optimizer and Game Dashboard.

A FPS gaming scene with the Game Dashboard appearing over the screen during gameplay. A dark, wintery scene with the Game Optimizer menu appearing over the game.

*Game Dashboard is activated only when both "Game Optimizer" and "Game Dashboard" is on.
**Screen images simulated.

Access to all your favorite games

Thousands of gaming universes right at your fingertips. Explore an epic library of cloud gaming titles and stream them immediately without ever wasting play time on downloads or updates.

A Boosteroid home screen image showing "Trine 4: The Nightmare Price". A GeForce NOW home screen showing five different game thumbnails in right.

*Supported partnerships may differ by country.
**GeForce NOW subscription may be required.
***Boosteroid subscription may be required.

Sustainability

Discover LG OLED AI's vision for tomorrow

Choose what's right for the planet with light, bio packaging and global sustainability credentials.

LG OLED packaging against a beige background with illustrated trees.

*All 2024 LG OLED models feature eco-friendly packing.
**All G4, C4, and B4 models are certified “Environmentally Evaluated".

Key Specs

  • Display Type

    4K OLED

  • Refresh Rate

    120Hz Native

  • Wide Color Gamut

    OLED Color

  • Picture Processor

    α8 AI Processor 4K

  • HDR (High Dynamic Range)

    Dolby Vision / HDR10 / HLG

  • G-Sync Compatible (Nvidia)

    Yes

  • FreeSync Compatible (AMD)

    Yes

  • Audio Output

    20W

  • Speaker System

    2.0 channel

  • Dolby Atmos

    Yes

  • TV Dimensions without Stand (WxHxD, mm)

    1070 x 620 x 45.9

  • TV Weight without Stand (kg)

    11.5

All Spec

PICTURE (DISPLAY)

  • Display Type

    4K OLED

  • Display Resolution

    4K Ultra HD (3,840 x 2,160)

  • Refresh Rate

    120Hz Native

  • Wide Color Gamut

    OLED Color

PICTURE (PROCESSING)

  • Picture Processor

    α8 AI Processor 4K

  • AI Upscaling

    α8 AI Super Upscaling 4K

  • Dynamic Tone Mapping

    Yes (Dynamic Tone Mapping Pro)

  • AI Genre Selection

    Yes (SDR/HDR)

  • AI Brightness Control

    Yes

  • HDR (High Dynamic Range)

    Dolby Vision / HDR10 / HLG

  • FILMMAKER MODE™

    Yes

  • Dimming Technology

    Pixel Dimming

  • Motion

    OLED Motion

  • Picture Mode

    10 modes (Personalized Picture Wizard, Vivid, Standard, Eco, Cinema, Sports, Game, Filmmaker, (ISF)Expert(Bright Room), (ISF)Expert(Dark Room))

  • HFR (High Frame Rate)

    4K 120 fps (HDMI)

GAMING

  • G-Sync Compatible (Nvidia)

    Yes

  • FreeSync Compatible (AMD)

    Yes

  • HGIG Mode

    Yes

  • Game Optimizer

    Yes (Game Dashboard)

  • ALLM (Auto Low Latency Mode)

    Yes

  • VRR (Variable Refresh Rate)

    Yes

ACCESSIBILITY

  • High Contrast

    Yes

  • Gray Scale

    Yes

  • Invert Colors

    Yes

DIMENSIONS AND WEIGHTS

  • TV Dimensions without Stand (WxHxD, mm)

    1070 x 620 x 45.9

  • TV Dimensions with Stand (WxHxD, mm)

    1070 x 684 x 235

  • Packaging Dimensions (WxHxD, mm)

    1220 x 735 x 152

  • TV Stand (WxD, mm)

    933 x 235

  • TV Weight without Stand (kg)

    11.5

  • TV Weight with Stand (kg)

    11.7

  • Packaging Weight (kg)

    14.5

  • VESA Mounting (WxH, mm)

    300 x 200

AUDIO

  • Dolby Atmos

    Yes

  • AI Sound

    α8 AI Sound Pro (Virtual 9.1.2 Up-mix)

  • Clear Voice Pro

    Yes (Auto Volume Leveling)

  • WiSA Ready

    Yes (Up to 2.1 Channel)

  • LG Sound Sync

    Yes

  • Sound Mode Share

    Yes

  • Simultaneous Audio Output

    Yes

  • Bluetooth Surround Ready

    Yes (2 Way Playback)

  • Audio Output

    20W

  • Audio Codec

    AC4, AC3(Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X (Refer to manual)

  • Speaker Direction

    Down Firing

  • Speaker System

    2.0 channel

  • AI Acoustic Tuning

    Yes

CONNECTIVITY

  • HDMI Audio Return Channel

    eARC (HDMI 3)

  • Bluetooth Support

    Yes (v 5.1)

  • Ethernet Input

    1ea

  • Simplink (HDMI CEC)

    Yes

  • SPDIF (Optical Digital Audio Out)

    1ea

  • HDMI Input

    4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS (4 port))

  • RF Input (Antenna/Cable)

    2ea

  • USB Input

    2ea (v 2.0)

  • Wi-Fi

    Yes (Wi-Fi 5)

SMART TV

  • Operating System (OS)

    webOS 24

  • ThinQ

    Yes

  • Family Settings

    Yes

  • USB Camera Compatible

    Yes

  • Full Web Browser

    Yes

  • Multi View

    Yes

  • Intelligent Voice Recognition

    Yes

  • Always Ready

    Yes

  • Magic Remote Control

    Built-In

  • Room to Room Share

    Yes (Receiver)

  • Smartphone Remote App

    Yes (LG ThinQ)

POWER

  • Power Supply (Voltage, Hz)

    AC 100~240V 50-60Hz

  • Standby Power Consumption

    Under 0.5W

ACCESSORIES INCLUDED

  • Remote

    Magic Remote MR24

  • Remote Control Batteries

    Yes (AA x 2EA)

  • Power Cable

    Yes (Attached)

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