TV & Display
4K UHD
Also: Ultra HD, 2160p
What it means
A display resolution of 3840 × 2160 pixels.
What to check
Compare screen size, source quality and viewing distance; resolution alone does not define picture quality.
Searchable terminology guide
Official Specification Terms
Understand what a term measures, what it does not prove, and what to compare before choosing an LG model.
61 terms
Air Care
Air Changes per Hour
Also: ACH
What it means
How many times an air purifier can process a room-sized volume of air in one hour.
What to check
Compare coverage only when the assumed air-change rate is the same.
Laundry
All-in-One
Also: Washer Dryer Combo
What it means
A single machine that washes and dries the same load.
What to check
Check usable capacity, total cycle time and ventless drainage needs.
Projectors
ANSI Lumens
Also: Brightness
What it means
A standardized measurement of projector light output.
What to check
Choose brightness with screen size and ambient light, not by lumens alone.
Cooling & Cooking
BTU
Also: British Thermal Unit
What it means
A heat-energy unit used for air-conditioner capacity and burner output.
What to check
For cooling, size for room load; for cooking, compare controllability as well as maximum output.
Air Care
CADR
Also: Clean Air Delivery Rate
What it means
Clean Air Delivery Rate: filtered air delivered per minute for a particle type.
What to check
Compare smoke, dust and pollen CADR for the same room and speed setting.
Cooling
CEER
What it means
Combined Energy Efficiency Ratio for room air conditioners.
What to check
Higher is generally more efficient when capacity and test standard match.
Ventilation
CFM
What it means
Cubic feet of air moved per minute.
What to check
Size ventilation for cooking output, duct length and room conditions.
Audio
Channels
What it means
The advertised speaker-channel layout, such as 3.1.2.
What to check
Check the real driver and rear-speaker layout; virtual channels are not the same as physical speakers.
Air Care
Continuous Drain
What it means
A dehumidifier connection that lets condensate drain without emptying the bucket.
What to check
Confirm hose slope, drain height and whether a pump is included.
Cooking
Convection
Also: True Convection
What it means
A fan circulates hot air in an oven cavity.
What to check
Compare fan modes, cavity layout and recipe adjustments.
Refrigerators
Counter Depth
What it means
A shallower refrigerator body intended to align more closely with cabinetry.
What to check
Read the full depth with doors and handles, then check door clearance.
Refrigerators
Craft Ice
What it means
LG branding for slow-melting round ice on supported models.
What to check
Compare production rate, bin capacity and maintenance needs.
Appliances
Cubic Feet
Also: cu. ft.
What it means
A volume measurement used for refrigerator, washer, dryer and oven capacity.
What to check
Compare usable layout and dimensions as well as the headline capacity.
Installation
Cutout Dimensions
What it means
The required cabinet opening for a built-in or fitted product.
What to check
Use the exact model installation document and measure the finished opening.
Dishwashers & Cooling
dBA
What it means
A-weighted decibels, a sound measurement adjusted for human hearing.
What to check
Compare values measured under similar conditions; a smaller number is quieter.
Displays
DCI-P3
What it means
A wide color gamut commonly used for cinema and HDR content.
What to check
Check the stated coverage percentage, accuracy and measurement method.
Laundry
Direct Drive
What it means
A motor design that drives the drum with fewer intermediate parts.
What to check
Consider control, warranty and serviceability; the label alone does not guarantee performance.
Audio
Dolby Atmos
What it means
An object-based audio format that can include height information.
What to check
Check eARC, source format and real up-firing or rear speaker support.
Appliances
Door Clearance
What it means
Space needed to open a door or drawer and remove internal parts.
What to check
Measure against walls, islands and handles, not just the appliance body.
TV & Audio
eARC
What it means
Enhanced Audio Return Channel over HDMI.
What to check
Confirm both devices support eARC and the audio formats you intend to pass.
Efficiency
ENERGY STAR
What it means
A certification showing a product meets current program efficiency criteria.
What to check
Compare the label date and annual-use assumptions for similar products.
Refrigerators
French Door
What it means
A refrigerator layout with two upper fresh-food doors and a lower freezer.
What to check
Check aisle width, drawer access and ice-system location.
Installation
Hardwired Connection
What it means
An appliance is connected directly to a circuit rather than a plug.
What to check
Use the installation guide and a qualified installer where required.
TV & Display
HDMI 2.1
What it means
A generation of HDMI capabilities whose supported features vary by device.
What to check
Check bandwidth and exact features per input instead of relying on the label alone.
TV & Display
HDR10
What it means
A common static-metadata high-dynamic-range format.
What to check
Picture impact also depends on brightness, contrast and tone mapping.
Air Care
HEPA
What it means
A high-efficiency particle filtration class.
What to check
Confirm the filter standard, seal design and replacement cost.
Laundry
Heat Pump Dryer
What it means
A ventless dryer that recirculates heat through a refrigeration loop.
What to check
Compare energy use, cycle time, drainage and low-temperature fabric care.
Air Care
Humidistat
What it means
A control that targets a selected relative humidity.
What to check
Check sensor placement, accuracy and restart behavior.
Refrigerators
Ice Maker
What it means
A system that automatically freezes and stores ice.
What to check
Compare daily output, storage, water filtration and freezer-space use.
Laundry
Impeller
What it means
A low-profile wash mechanism at the bottom of a top-load washer.
What to check
Compare load movement, usable tub shape and cycle behavior.
Cooking
Induction
What it means
Electromagnetic energy heats compatible cookware directly.
What to check
Check cookware compatibility, electrical service and low-power control.
Portable Electronics
IP Rating
What it means
Ingress-protection rating for dust and water exposure.
What to check
Read both digits and the test limits; water resistance is not permanent.
TV & Display
Local Dimming
What it means
Independent backlight zones dim or brighten parts of an LCD image.
What to check
Zone count, algorithm and viewing angle all affect the result.
Computing
LPDDR5X
What it means
Low-power high-speed memory commonly soldered in thin laptops.
What to check
Choose enough memory at purchase because it is often not upgradeable.
Computing
NVMe SSD
What it means
Solid-state storage using the NVMe protocol over PCIe.
What to check
Compare usable capacity, performance class and upgrade access.
TV & Display
OLED
What it means
A self-emissive display where each pixel produces its own light.
What to check
Compare brightness, room reflections, use pattern and panel-care features.
Laundry
Pedestal
What it means
A raised base, sometimes with storage or a compact washer.
What to check
Verify exact model compatibility and total installed height.
Air Care
Pints per Day
What it means
The amount of moisture a dehumidifier removes under a defined test.
What to check
Compare ratings under the same DOE standard and room temperature.
Displays
Pixel Density
Also: PPI
What it means
Pixels per inch, combining resolution and physical size.
What to check
Match text scaling and viewing distance to the intended workload.
TV & Display
QNED
What it means
LG branding used for premium LCD TVs with quantum-dot/nanocell-related color technology.
What to check
Compare backlight, local dimming, brightness and panel size by exact model.
TV & Display
Refresh Rate
Also: Hz
What it means
How many times per second a display can update an image.
What to check
Confirm the native panel rate, input support and source frame rate.
Maintenance
Replacement Interval
What it means
The recommended time or usage before replacing a filter or consumable.
What to check
Use actual conditions and the exact part number, not time alone.
Floor Care
Run Time
What it means
How long a cordless product can operate on a charge.
What to check
Compare power mode, tool, battery count and test conditions.
Cooling
SACC
What it means
Seasonally Adjusted Cooling Capacity used for portable air conditioners.
What to check
Use SACC for portable-unit comparisons rather than older higher BTU labels.
TV & Display
Screen Size
What it means
Diagonal display measurement, excluding most bezel.
What to check
Translate diagonal size into actual width and height before installation.
Cooking
Slide-In Range
What it means
A range designed for a built-in appearance between cabinets.
What to check
Check finished sides, control location, rear trim and cutout requirements.
Displays
sRGB
What it means
A standard color space widely used for web and office content.
What to check
Compare coverage and accuracy; more gamut is not automatically more accurate.
Laundry
Stacking Kit
What it means
Model-specific hardware that secures a dryer above a washer.
What to check
Never assume a kit fits from width alone; confirm exact model compatibility.
Dishwashers
Stainless Steel Tub
What it means
A dishwasher wash cavity made primarily from stainless steel.
What to check
Compare drying system, rack layout and noise along with tub material.
Dishwashers
Third Rack
What it means
An upper rack for utensils, flatware or small items.
What to check
Check usable depth, adjustability and interference with the middle rack.
Projectors
Throw Ratio
What it means
Projection distance divided by image width.
What to check
Use the exact model ratio and lens offset to plan placement.
Computing
Thunderbolt
What it means
A high-speed data, display and power connection using USB-C on current devices.
What to check
Confirm version, charging power and display support on each port.
Computing
USB-C Power Delivery
Also: USB PD
What it means
USB-C charging negotiated between a source and device.
What to check
Match required wattage and confirm the port accepts charging.
TV & Display
VESA
What it means
A standardized mounting-hole pattern measured in millimeters.
What to check
Match pattern, weight rating, screw size and wall structure.
Laundry
Ventless
What it means
A dryer or combo that does not exhaust moist air through an exterior duct.
What to check
Check condensate handling, room conditions and cycle behavior.
TV & Display
VRR
Also: Variable Refresh Rate
What it means
Variable Refresh Rate synchronizes display updates with game output.
What to check
Confirm the supported range and compatibility format.
Cooking
Wall Oven
What it means
An oven installed in a cabinet independently of a cooktop.
What to check
Check cutout, electrical service, door reach and ventilation.
Refrigerators
Water Filter
What it means
A replaceable cartridge used in the refrigerator water system.
What to check
Match the exact filter model and account for replacement cost.
Computing
Watt-hour
Also: Wh
What it means
Battery energy capacity: volts multiplied by amp-hours.
What to check
Capacity helps comparison but software, display and workload determine runtime.
Laundry
WashTower
What it means
LG’s integrated stacked washer and dryer platform with central controls.
What to check
Compare total height, capacity, venting and service access.