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COMPANY HISTORY

Our History

A 20-YEAR JOURNEY

2006 — 2025

From FPD light-source metrology to automotive ECU end-of-line — 20 years of accumulated engineering in one focused field.

  • 20+YEARS
  • 5+PATENTS
  • 50+PRODUCT LINES
  • ISO9001 / 14001
2022 — 2025
Mass-Production Acceleration · G80 3rd Gen · New EV TCO Tester
13 items
  • AUTO Automotive HEADLAMP Photometric Tester (INLINE) supplied
  • AUTO JG CDM EOL Tester (INDICATOR LED · ACTUATOR inspection) developed & supplied
  • AUTO P59 LDM EOL Tester developed & supplied
  • AUTO LX3 LDM DUAL EOL Tester (PALISADE) modified & supplied
  • AUTO ADAPTER FCT TESTER (EV TCO Tester) developed & supplied
  • AUTO DL3-PE LDM EOL Tester FIXTURE (K5) developed & supplied
  • AUTO MQ4-PE LDM EOL Tester (SORENTO) developed & supplied
  • AUTO BLDC Seat Blower Motor PWM / CAN Tester developed
  • AUTO RG3-PE ILCU ROM WRITER FIXTURE (G80 3rd Gen) developed & supplied
  • AUTO RG3-PE ILCU EOL Tester (G80 3rd Gen) developed & supplied
  • AUTO AU38X-PA EOL Tester (AUDI A3) developed & supplied
  • AUTO SX2 LDM EOL Tester (KONA) developed & supplied
  • DISPLAY MINI LED DIV Tester supplied
2017 — 2020
Global OEM Expansion · INLINE Production · MURA Inspection
15 items
  • 2020.Dec DISPLAY MINI_LED DIV Tester developed & supplied
  • 2020.Jul AUTO ROOM LAMP Tester developed & supplied
  • 2020.Jun AUTO INLINE Photometric Tester developed & supplied
  • 2020.Mar LIGHTING AC Module Tester developed & supplied
  • 2019.Nov DISPLAY Flat Ultra-Slim DIV Brightness Tester developed & supplied
  • 2019.Sep AUTO USB-to-CAN Board developed & supplied
  • 2019.May DISPLAY VISION DIV Brightness Tester developed & supplied
  • 2019.Jan AUTO OFFLINE ROM WRITER developed & supplied
  • 2018.Dec AUTO INLINE ROM WRITER developed & supplied
  • 2018.Jan AUTO EOL Light-Distribution Tester developed & supplied
  • 2017.Nov MOBILE Mobile C-TYPE charger continuity & dielectric Tester developed & supplied
  • 2017.Aug AUTO Automotive HEADLAMP AGING Tester developed & supplied
  • 2017.Jul DISPLAY Module MURA Inspection System developed & supplied
  • 2017.Apr DISPLAY EDGE Room/High-Temp Tester & AUTO AGING Tester developed & supplied
  • 2017.Feb DISPLAY BLU DIV Tester developed & supplied
2014 — 2016
Incorporation · IP Portfolio · LED Vision Inspection
13 items
  • 2016.Dec PATENT Patent filed 10-2016-0165339 — Measurement Apparatus & Method for Bent LED Module
  • 2016.Oct AUTO Automotive LED Module Optical Evaluation Tester developed & supplied
  • 2016.May PATENT Patent filed 10-2016-0054846 — LED Module Inspection Method & Apparatus
  • 2016.Mar DISPLAY BLUE LED PKG Brightness Drop Tester developed & supplied
  • 2015.Nov DISPLAY Optical-camera-based Phosphor Film Tester developed & supplied
  • 2015.Sep DISPLAY Camera-based vision inspection technique for LED PKG developed and deployed in production
  • 2015.Jul DISPLAY Automatic Label Attaching Equipment for BLU developed & supplied
  • 2015.Jan PATENT Patent filed 10-2014-0076558 — Defect Inspection Method & Apparatus for LED Devices and Modules
  • 2014.Nov DISPLAY In-process AGING Inspection System developed & supplied
  • 2014.Sep DISPLAY In-process High-Temp IN-LINE Inspection System developed & supplied
  • 2014.Mar DISPLAY Brightness Drop Tester developed & supplied
  • 2014.Feb DISPLAY 8-Channel LED Module Tester for BLU developed & supplied
  • 2014.Jan MILESTONE Incorporated as Yoowon LDS Co., Ltd.
2010 — 2013
ISO 9001 / 14001 Certified · LED Lighting Ballast Era
11 items
  • 2013.Oct LIGHTING AC/DC Hybrid Measurement System for lighting developed & supplied
  • 2013.Jul DISPLAY OLED AGING Measurement System for BLU developed & supplied
  • 2013.Jun DISPLAY Module MURA Inspection System developed & supplied
  • 2013.May DISPLAY 4-Channel LED Module Tester for BLU developed & supplied
  • 2013.Feb DISPLAY 48-Channel Selector for Module TVS inspection developed & supplied
  • 2010-2012 LIGHTING LED Lighting Ballast [20W–200W] development completed
  • 2010-2012 CERT Quality Management System certified — ISO 9001:2008
  • 2010-2012 PATENT Patent filed 10-2011-0010929 — Beam-Angle Adjustable LED Streetlight
  • 2010-2012 LIGHTING 400W-class LED Ballast for sports lighting developed
  • 2010-2012 CERT Environmental Management System ISO 14001:2004
  • 2010-2012 DISPLAY 48-Channel Constant-Current Control Tester (1A class) for BLU developed & supplied
2006 — 2009
Founding · First Patents · BLU Supply to Samsung · LG Innotek · Seoul Semi
7 items
  • 2006 MILESTONE Yoowon LDS founded
  • 2006-2009 LIGHTING CCFL AGING INVERTER developed & mass-produced
  • 2006-2009 LIGHTING CCFL lighting precision measurement equipment developed
  • 2006-2009 PATENT Patent filed 10-2006-0101179 — Aging Inverter for CCFL / EEFL Fluorescent Lamps
  • 2006-2009 DISPLAY LED-MODULE Constant-Current Control Measurement Equipment for BLU developed & mass-produced
  • 2006-2009 PATENT Patent filed 10-2008-0866346 — LED Module Error Detection Apparatus
  • 2006-2009 DISPLAY LED Module measurement equipment for BLU → supplied to Samsung Electro-Mechanics · LG Innotek · Seoul Semiconductor