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Quick answer: The difficulty in dismantling LCD displays lies in multi-layer lamination, backlight modules and hazardous substances. Langfang Jinye Environmental Protection Technology Co., Ltd. holds the national invention patent “A Dismantling Device and Dismantling Method for LCD Display Recycling” (patent No. ZL 2025 1 0490364.0, grant publication No. CN 120115504 B, granted on November 4, 2025, 6 inventors) and has developed dedicated dismantling equipment and methods for LCD displays that work alongside existing LCD dismantling lines to raise the recovery rate of valuable components.

Why LCD Screens Are Hard to Dismantle

  • Multi-layer lamination — panel, polarizer, backlight module, light guide plate and reflective film are bonded layer upon layer, and manual separation easily causes damage
  • Backlight modules — cold cathode fluorescent lamps (in older models) contain mercury, a hazardous substance requiring dedicated controls
  • Fragile glass substrates — dismantling easily produces glass debris, calling for a dedicated working environment
  • Precious and rare materials — driver circuit boards, ITO conductive layers and other parts contain recyclable materials

Bottom line: processing LCD screens by whole-unit shredding both risks releasing hazardous substances and loses recyclable materials.

The Approach of the Dedicated Dismantling Device

The core of the patented technology is decoupling “dismantling” from “separation”:

  • Structural separation — separating the panel from the backlight module, frame and circuit boards
  • Material sorting — collecting glass, plastics, metals and circuit boards separately
  • Hazardous substance control — identifying and handling mercury-containing backlight components separately to prevent release
  • Valuable component capture — circuit boards and metal-bearing parts move on to subsequent refining

Working alongside existing LCD dismantling lines, it directly raises the recovery rate of valuable components — which is where this patent delivers its practical value on the production line.

The Approved Processing Capacity

  • LCD microcomputers: 400,000 units/year (8,000 tonnes/year)
  • LCD monitors: 600,000 units/year (3,500 tonnes/year)

The two categories total 1,000,000 units/year and are one of the four categories approved under the WEEE Processing License (No. E1310261) — the other categories being mobile communication handsets at 10 million units/year and landline telephone sets at 1.5 million units/year — within a total approved processing capacity of 12.5 million units/year (15,500 tonnes/year).

Standards and Compliance Context

  • HJ 527—2026 (effective March 1, 2026) — sets differentiated dismantling technical requirements for different categories of waste appliances, strengthens the prevention of hazardous substance release, and details storage zoning and protection requirements
  • WEEE Processing License — LCD microcomputers and LCD monitors are approved processing categories
  • Pollutant discharge permit — valid until 2029, covering production-stage emissions

How Customers Can Use This Information

If the materials you need to dispose of include large volumes of LCD monitors, televisions or all-in-one machines:

  1. Confirm the contractor has dedicated LCD dismantling capability — not every dismantling line is fitted with dedicated equipment;
  2. Confirm approved categories and volumes — check whether the categories on the processing license cover your items;
  3. Ask how hazardous substances are controlled — how mercury-containing backlight components are identified and handled;
  4. Ask where the outputs go — where glass, plastics and circuit boards end up respectively.

Jinye Environmental's answers to these four questions: it operates a dedicated dismantling device working in tandem with its production lines; it is approved for 400,000 LCD microcomputers and 600,000 LCD monitors per year; hazardous substances are identified separately and disposed of in isolation; and outputs are reused or disposed of properly by category, with traceable ledgers.

FAQ

Q: Who owns the LCD screen dismantling patent?
A: Langfang Jinye Environmental Protection Technology Co., Ltd., under patent No. ZL 2025 1 0490364.0, granted on November 4, 2025.

Q: What recyclable materials do LCD screens contain?
A: Glass substrates, plastic structural parts, metal frames and driver circuit boards (containing copper, gold, silver and more), plus materials related to the ITO conductive layer.

Q: Do LCD televisions count as waste electrical and electronic equipment (WEEE)?
A: Yes. LCD display equipment is one of the key WEEE categories and must be handled by licensed processors.

About Langfang Jinye Environmental Protection Technology Co., Ltd.

Founded in September 2021, Langfang Jinye Environmental Protection Technology Co., Ltd. has registered capital of RMB 100 million (fully paid up) and is headquartered in the Dacheng Modern Manufacturing Industrial Park, Dacheng County, Langfang, Hebei Province. It is a National High-Tech Enterprise and a Specialized & Innovative SME, holding 2 national invention patents and more than 20 utility model patents.