The Technical Support Behind The Tiananmen Military Parade: 1.3 Million Domestic Chips Protect Ultra-Clear Displays

1. Core chip: Dual-core collaboration lights up the military parade

1. ICND2055S (PWM constant current driver, column driver)

• core positioning: Full-color LED screen dedicated PWM constant current output driver chip, screen main controller
• Key parameters：
  • 16 channels of PWM constant current output,0.5–35mAAdjustable
  • support1–32 Scan any, suitable for high-density small-pitch screens
  • Refresh rate up to 7680Hz, completely eliminate high-speed shooting stroboscopic
  • Inter-channel current accuracy **<±1.5%**, the picture is uniform and has no color cast
  • Built-in ghost elimination, LED open circuit detection, anti-caterpillar effect
• encapsulation：SSOP24/QFN24, suitable for high-density PCB design

2. ICND2018AP (row driver, lamp bead protection)

• core positioning：LED display row driver chip, responsible for row gating and lamp bead protection
• Key parameters：
  • 8 channel output, max.2.5mA/channel
  • Built-inLamp overvoltage/overcurrent protection, extend the life of the large screen
  • Low noise, high anti-interference, suitable for harsh outdoor environments
• synergy value: Cooperate with ICND2055S to achieve accurate driving of rows and ensure8K+HDRSmooth and stable picture

3. Technological breakthrough: Meet the stringent requirements of 8K+HDR Vivid

• 8K resolution: Single screen pixels exceed 33 million, requires a chipHigh-speed data transmission + precise current control
• HDR Vivid：
  • Domestic independent dynamic HDR standard,Frame-by-frame/region-by-region dynamic adjustmentBrightness, contrast, color
  • peak brightness1000–4000 nits, extremely restored light and dark details
  • Request chipResponse speed <20ns, current accuracy <±2%, dynamic range> 16bit
• Domestic verification: Chipone North’s dual-chip solution passed the national-level ceremony test,Completely meets the highest audio-visual standards

2. Domestic display driver chips: from catching up to leading

1. Localization process: comprehensive breakthrough and accelerated substitution

• Mid- to low-end market: Domestic chipsDominate, Ming Microelectronics, Fuman Micro, Chipone North and other shares exceeded70%
• high end market: Jichuang North, Weir, Yisiwei, etc. are accelerating breakthroughs,LED driver, automotive display, 8K ultra-high definitionThe localization rate in the field has increased rapidly
• Market landscape (2024)：
  • ChiChuang North:12.8%, LED driver + LCD DDIC two-wheel drive
  • BOE Crystal Core:18.5%, panel factory vertical integration
  • Vail shares:15.2%, CIS+DDIC collaboration
  • Gekewei, Yisiwei, etc.: Total17%+
• Forecast of localization rate: Localization rate of display driver chips in mainland China in 2025Up to 30%, expected to break through in 202640%

2. Industrial chain: complete closed loop, independent and controllable

• design：ChiChuang North, Ming Microelectronics, Fuman Micro, Weill, Yisiwei, etc.
• manufacturing: SMIC, Jinghe Integration, Huali Microelectronics (HV process)
• closed beta: Changdian Technology, Tongfu Microelectronics, Huatian Technology
• panel: BOE, TCL CSOT, Tianma Microelectronics
• terminal: Leyard, Unilumin, Absen (commercial display); Hisense, Skyworth (TV)

3. Application Scenarios: From National Ceremony to Billion Dollar Market

1. Major national events (ChiChuang Northern Case)

• 70th/80th anniversary military parade of the victory of the Anti-Japanese War, centenary celebration of the founding of the Party
• Beijing Winter Olympics, Qatar World Cup, Paris Olympics
• CCTV Spring Festival Gala, National Convention Center, Command and Control Center

2. Commercial market: Explosion of hundreds of billions of demands

• command and control center: 8K ultra-high definition, high brush, excellent low grayscale
• conference education: Small spacing LED, immersive display
• High-End Retail/Landmark: Huge advertising screen, light and shadow show
• Sports venues/stages: High refresh rate, high reliability
• Vehicle display: Cockpit multi-screen, HUD, instrument

3. Market trends

• Small spacing:P1.0–P1.86 becomes mainstream, driving chip demandBoth volume and price rise
• High brushing: **3840Hz+** becomes standard, and 7680Hz is popular in high-end scenarios
• Intelligent: IntegratedAI image quality enhancement, HDR processing, remote monitoring
• localization：Policy + supply chain security driver,Domestic substitution enters an accelerated period

4. Summary: technological independence, industrial rise

1. technological breakthrough：ChiChuang NorthICND2055S+ICND2018APTwo-chip solution to7680Hz high brush, ultimate precision, lamp bead protection, support8K+HDR VividNational level ceremony, realizedKey components are autonomously controllable。
2. Industrial transition: Domestic display driver chip fromDominated by mid- to low-endArriveHigh-end breakthrough, formDesign - Manufacturing - Packaging and Testing - Panel - TerminalComplete industrial chain,The localization rate continues to increase。
3. market opportunity: From national ceremonies to commercial markets,Ultra HD displayDemand explodes, domestic chips usher inHundreds of billions of market space, moving from Made in China to Created in China.