2025 GANGNAM MEDIA WINTER FESTA

JoongAng Ilbo 2025 Gangnam Media Winter Festa
QR message wall · Motion-responsive interactive wall

Gangnam, Seoul · K-POP Square outside exits 5 and 6 of Samseong Station
Dec 19, 2025–Jan 3, 2026 · 2025 Gangnam Media Winter Festa

New Year greetings sent from your phone appear on the plaza’s LED wall.
Spread your arms in front of the wall, and starlight traces your silhouette.

Client: JoongAng Ilbo
Year: 2025
KNOVCOMPILE's role: QR messaging website, server and LED wall output
Depth-camera motion recognition and real-time particle visuals

VISUAL WALL at night: glowing outlines appear in a starry screen as two adults and a child reach out in front.

A wall for New Year wishes,
and movement made of starlight

The 2025 Gangnam Media Winter Festa filled K-POP Square outside Samseong Station with media art, lights and trees. In two of the white “Walls of Hope” along the back of the plaza, KNOVCOMPILE created two experiences for passersby: MEMORY WALL and VISUAL WALL.

Overhead model of K-POP Square: five white structures line the back. The second, red face is MEMORY WALL; the fourth, navy face is VISUAL WALL. Wonder Stage is on the left, with tree islands and gift-box cubes in front.

A MEMORY WALL B VISUAL WALL

Enlarge the two wall locations

A

MEMORY WALL Wall of Hope A · Send a message by QR → New Year wishes on the LED wall

B

VISUAL WALL Wall of Hope B · Move in front of the wall to become a starlight silhouette

Plaza at dusk → VISUAL WALL beyond the trees → Visitors dancing among the trees

Daytime plaza with trees and white structures below the Trade Center towers and giant billboards — K-POP Square by day

An elevated view of the plaza at dusk, with billboards and lights switched on — The plaza at dusk

VISUAL WALL and visitors beyond a tree island at night — VISUAL WALL beyond the trees

Starlight silhouettes visible between glowing spheres and trees at night — VISUAL WALL among the trees

VISUAL WALL’s starry screen behind an island of trees and lighting columns at dusk — VISUAL WALL beyond the trees

MEMORY WALL with colorful message cards on a white screen behind gift-box LED cubes — MEMORY WALL behind the gift-box cubes

Plaza · Official program Wonder Stage · Harmony of Light · Eve’s Christmas

MEDIA ART Wonder Stage · Media art themed show
LUCKY QR Harmony of Light · Lucky draw
STAMP TOUR Complete a tree with stamps
Lighting ceremony December 19, 2025 · Opening

Walls of Hope · Official program Walls of Hope A and B

A MEMORY WALL QR messages · LED wall output · KNOVCOMPILE
B VISUAL WALL Motion recognition · Particle visuals · KNOVCOMPILE

Two red information banners with event dates, show times and a map — Event information banners

A tree island at night, with the starry screen beyond lighting columns and glowing spheres — The plaza at night

How the experience unfolds

A MEMORY WALL

Scan the QR code
Write a message
See it on the LED wall

B VISUAL WALL

Stand in front of the wall
Your silhouette becomes starlight
Light follows your movement

A MEMORY WALL · Wall of Hope A

New Year wishes from your phone,
up on the plaza wall

Scan the QR code on the information banner to open the message page. Send a New Year greeting and it is stored on the server, then displayed in large type at the center of the LED wall. Earlier messages float around it as colorful cards. Across the 16-day event, 3,057 messages appeared on the wall.

Scan the QR code
Scan the QR code on the banner with your phone.
Write a message
Write and send your New Year greeting on the page.
See it on the LED wall
Your greeting appears in large type at the center of the wall.

Scan QR → Write message → Send → Message appears on the wall → Two visitors at the wall

A visitor scans the QR on the MEMORY WALL information banner — Scanning the QR on the information banner

Hands typing on the phone’s message page — Message entry

Colorful message cards on the white LED wall beneath a building billboard — MEMORY WALL with message cards

A large New Year message surrounded by message cards — A message at the center of the wall

Silhouettes of two people in front of the white message wall — Two visitors at the message wall

Visitors with a dog look at a message in the middle of the white screen — Visitors reading a message

A gloved hand uses a phone camera to scan the QR on the MEMORY WALL banner — Scanning the banner’s QR code

A hand typing on the phone’s message page — Message entry

Five visitors looking up at a large message on the white LED wall — Visitors reading messages at the wall

Visitors lined up facing MEMORY WALL at night — Visitors at MEMORY WALL

Greetings written on the QR page pass through the server
and appear directly on the plaza’s LED wall.

B VISUAL WALL · Wall of Hope B

Spread your arms at the wall,
and starlight draws your shape

Stand before the flowing night sky and depth cameras on both sides of the base read your body, tracing your silhouette with starlight particles. Spread your arms and the outline follows; run and starlight trails behind you. Several visitors can appear side by side.

Stand in front of the wall
Stand in front of the night-sky screen.
Spread your arms
Starlight traces the outline of your body.
Run
Starlight flows with your movement.

Daytime silhouettes → Visitors making starry outlines at night → Arms outstretched

Two visitors spread their arms, creating matching large starlight outlines — Two people with arms outstretched

A person reaches out and the outline reaches with them — An outline that reaches with you

Three people stand side by side, producing three starlight silhouettes — Three people side by side

The screen traces a visitor holding a shopping bag overhead — Raise a shopping bag

Visitors facing large starlight silhouettes on the screen by day — VISUAL WALL by day

A visitor with arms outstretched and their silhouette at night — Arms outstretched

Arms outstretched → A child before the starry screen

Daytime: leaning in front of the screen → Standing before a silhouette

A child seen from behind, facing the starry screen — A child before the starry screen

VISUAL WALL and visitors at night — Visitors and silhouettes

A person in a white padded jacket spreads their arms, mirrored in starlight — Starlight outlines with arms outstretched

A starry sky flows across the wide LED wall at dusk; two sensor windows are visible in the white base — VISUAL WALL awaiting visitors

Several silhouettes glow side by side as visitors stand before the screen at night — Silhouettes side by side

A visitor reaches out and the silhouette moves along — A visitor reaching out

Starlight particles scatter above a child running past the screen — A running child and scattered starlight

A long trail of starlight follows a running child — Trailing starlight

A mother and child stand before the screen with a starlight outline on the left — Mother and child

Depth-camera recognition and real-time particle rendering
turn visitors’ movements directly into starlight on screen.

From a phone to a wall,
from a gesture to starlight

A

Input QR
Mobile webpage

Processing Message server
Store and display

Output LED wall
Message cards

B

Input Two depth cameras

Processing Silhouette recognition
Particle rendering

Output LED wall
Starlight outlines

Flowing words became cards,
and rain became starlight

Both walls evolved through several iterations. MEMORY WALL changed from flowing handwritten text filling the screen to cards with different colors and shapes for each message. VISUAL WALL changed from silhouettes in color-shifting rain to starlight outlines of shimmering points linked like lines. These became the final visual treatments.

MEMORY WALL early version · Flowing handwritten text

MEMORY WALL final version · Colored cards and a large central message

VISUAL WALL early version · Silhouettes in color-shifting rain

VISUAL WALL final version · Starlight points linked into outlines

On-site documentation

A visitor dances with arms outstretched on a tree island, with VISUAL WALL behind — Dancing on a tree island

Portrait view of a visitor with arms outstretched and a heart-shaped silhouette — Heart-shaped silhouette

Portrait view of a visitor before a turquoise silhouette by day — Daytime silhouette

MEMORY WALL’s white screen beyond gift-box LED cubes at dusk — Gift-box cubes and MEMORY WALL

VISUAL WALL and visitors seen through trees and lighting columns — VISUAL WALL seen through the trees

A large starlight silhouette above a visitor crouching in front of the screen — A visitor at VISUAL WALL

A visitor reaches out at dusk, creating a starlight outline — VISUAL WALL at dusk

A human outline drawn in countless glowing points against a navy screen — Starlight outline close-up

Event film

JoongAng Ilbo: 2025 Gangnam Media Winter Festa event film

Credits

Client: JoongAng Ilbo
Agency: FIG
Event: 2025 Gangnam Media Winter Festa
Hosted by Gangnam Eyes · K-POP Square, Samseong Station
Event film · Excerpts · Stills: Official videos from JoongAng Ilbo and Gangnam Eyes
QR messaging website, server and LED wall output Depth-camera motion recognition and real-time particle visuals: KNOVCOMPILE

JoongAng Ilbo 2025 Gangnam Media Winter Festa QR message wall · Motion-responsive interactive wall

A wall for New Year wishes, and movement made of starlight