UGPCBのロゴ
製品の概要: A High-Reliability PCB Solution for LCD Display Driving
UGPCB の導入LCD Liquid Crystal Display PCB Circuit Board (モデル: UGPCB-LCD-001), 高性能の2-layer rigid FR-4 printed circuit board engineered specifically for liquid crystal display driving applications. This product uses Kingboard KB6165F high-end copper-clad laminate as the base material, with a board thickness of 1.6 mmと 1 oz copper foil (約 35 μm). The surface finish employs the同意する (エレクトロレスニッケル/浸漬ゴールド) process at 2U” . The board measures 147.2 × 65 mm, with a minimum hole diameter of 0.22 mm and minimum line width/spacing of 0.3 mm/0.27 mm.
これLCD display PCB serves as the critical circuit carrier that connects display driver chips to liquid crystal glass panels. It finds extensive applications in small to medium-sized LCD display modules, industrial control panel displays, automotive infotainment system displays, and smart home human-machine interaction interfaces.
製品の定義: What Is an LCD Liquid Crystal Display PCB?
An LCD Liquid Crystal Display PCB (プリント基板) is a specialized circuit board designed for liquid crystal display driving systems. It performs three core functions: driving signal transmission, 配電, and timing control signal routing. 標準とは異なります PCB回路基板, an LCD display PCB demands tighter tolerances in line width precision, インピーダンス制御, and surface flatness.
This product belongs to therigid double-sided PCB category with 2 レイヤー (2L). It uses FR-4 grade flame-retardant material (UL 94 V-0 定格) and supports both SMT (表面実装技術) and through-hole component hybrid assembly processes. The board meets IPC-6012 Class 2 パフォーマンス要件, making it suitable for industrial electronics and consumer electronics applications.
Design Specifications: Critical Parameters for LCD PCB Engineering
基板材料: The KB6165F Advantage
This product uses Kingboard KB6165F copper-clad laminate, which delivers the following key performance characteristics:
- ガラス転移温度 (TG): ≥150°C, ensuring dimensional stability during lead-free reflow soldering processes
- 熱分解温度 (TD): 325℃, providing excellent thermal reliability
- 可燃性評価: UL 94 V-0, with flame self-extinguishing within 10 seconds in vertical burn tests
- CTE (熱膨張係数): 12–15 ppm/°C in X-Y direction, 40–230 ppm/°C in Z direction, offering good thermal matching with LCD driver ICs
- CAF (導電性陽極フィラメント) 抵抗: Excellent anti-CAF performance ensuring long-term reliability
- Lead-Free Compatible: Meets RoHS environmental requirements
According to IPC-2221 design standards, materials with Tg ≥150°C are suitable for lead-free assembly processes, capable of maintaining structural integrity under reflow soldering peak temperatures reaching 245–260°C.
Layer Count and Stack-up Design
The product features 2 レイヤー (2L) with a standard 1.6 板厚mm. IPC-2221の場合, 1.6 mm represents the most commonly used thickness specification for rigid プリント基板, balancing mechanical strength with assembly convenience.
Line Width and Spacing Design
The minimum line width of 0.3 mm and minimum line spacing of 0.27 mm are carefully selected parameters forLCD driver PCB 信号の完全性. Under IPC-2221 standards, the minimum spacing requirement for conventional voltage (≤30V) digital signal traces is 0.1 mm (4 ミル). This product’s 0.27 mm (約 10.6 ミル) spacing far exceeds the IPC minimum requirement, providing ample margin for signal quality.
Design Calculation Reference (based on IPC-2221 outer layer conductor current-carrying capacity simplified formula):
Outer layer trace current-carrying capacity ≈ k × ΔT^0.448 × W^0.725 × T^0.725
Where k = 0.048 (for outer layer). At a 10°C temperature rise, a 0.3 mm trace with 1 oz copper thickness delivers a theoretical current-carrying capacity of approximately 1.2–1.5 A—sufficient for the power and signal trace requirements of conventional LCD driver boards.
最小穴の直径
The minimum hole diameter of 0.22 mm (約 8.7 ミル) falls within the precision drilling category. Under IPC-6012, the standard drilled hole diameter tolerance is ±0.08 mm (approximately ±3 mil) . のために 0.22 mmマイクロビア, manufacturing tolerances are typically controlled within ±0.05 mm.
表面仕上げ: ENIG at 2U”
The同意する (エレクトロレスニッケル/浸漬ゴールド) surface finish with 2U” gold thickness (約 0.05 μm) complies with IPC-4552 requirements. IPC-4552 Revision A (issued in 2017) specifies gold deposit thickness of 0.04 μmから 0.10 μm (1.6 μin to 4.0 μin) and nickel thickness of 3 μmから 6 μm.
ENIG Surface Finish Advantages:
- Excellent solderability supporting multiple reflow cycles
- Strong wire bonding capability
- Superior oxidation and corrosion resistance
- Flat surface suitable for fine-pitch component mounting
- Extended shelf life
動作原理: Signal Transmission Mechanisms of the LCD Display PCB
TheLCD liquid crystal display PCB operates on two core functions: 信号伝送 そして配電.
1. Display Driver Signal Transmission: Display data from the main controller chip (MCU/SoC) travels through thePCB回路基板 via microstrip or stripline traces to the LCD driver IC. The driver IC converts digital signals into analog grayscale voltages, which are then output through theプリント基板‘s fine traces to the ITO electrodes on the liquid crystal glass panel, controlling the twist angle of liquid crystal molecules to produce the displayed image.
2. Timing Control Signal Routing: TheLCD display PCB carries critical timing signals including VSYNC (Vertical Sync), HSYNC (Horizontal Sync), DCLK (Pixel Clock), and DE (Data Enable). The transmission delay and impedance matching of these signals directly affect display quality.
3. Power Management Distribution: TheLCD circuit board converts the input power (通常 3.3 V or 5 V) through DC-DC conversion circuits to generate the multiple voltage levels required by the LCD panel, including VGH (gate-on voltage, 通常 +15 V to +30 V), VGL (gate-off voltage, typically −5 V to −15 V), and AVDD (analog power voltage).
製品分類: LCD PCB Categories
LCD liquid crystal display PCBs can be classified along the following dimensions:
レイヤーカウントごとに
- Single-sided boards: Used for simple segment-code LCD displays
- Double-sided boards (2L): This product’s category, used for small to medium-sized TFT-LCD display drivers
- Multilayer boards (4L and above): Used for high-resolution, large-format display modules
表面仕上げによる
- ENIG boards: This product’s category, offering the best overall performance
- OSP boards: Lower cost, suitable for short-lifecycle consumer electronics
- HASL boards: Suitable for LCD driver boards with wider pin pitches
アプリケーションによって
- Consumer Electronics LCD PCBs: Smartphone secondary displays, smartwatch displays, e-reader screens
- Industrial Control LCD PCBs: Industrial HMI, instrument panel displays, CNC operation panel display drivers
- Automotive LCD PCBs: In-vehicle infotainment systems, digital instrument clusters, HUD display control boards
- Medical Device LCD PCBs: Patient monitors, ultrasound diagnostic equipment, medical imaging system display driver boards
Core Performance Specifications
| パラメーター | 仕様 | Reference Standard |
|---|---|---|
| Laminate Material | KB6165F (Kingboard) | - |
| ラミネートタイプ | FR-4 Glass Fabric Copper-Clad Laminate | UL 94 V-0 |
| レイヤー数 | 2 レイヤー (2L) | - |
| 板厚 | 1.6 mm | IPC-2221 |
| 外層の銅の厚さ | 1 オンス (35 μm) | IPC-6012 Class 2 |
| 表面仕上げ | わずか2U” (0.05 μm Au) | IPC-4552 |
| Nickel Layer Thickness | 3–6 μm (underlayer) | IPC-4552 Rev A |
| 最小穴の直径 | 0.22 mm | IPC-6012 |
| 最小線幅 | 0.3 mm | IPC-2221 |
| Minimum Line Spacing | 0.27 mm | IPC-2221 |
| 基板寸法 | 147.2 × 65 mm | - |
| TG (ガラス転移温度) | ≥150°C | - |
| TD (熱分解温度) | 325℃ | - |
| CTE (X-Y Direction) | 12–15 ppm/°C | - |
| 可燃性評価 | UL 94 V-0 | UL 94 |
| 耐アーク性 | ≥60 seconds | - |
| 表面抵抗率 | ≥2.6 × 10⁸ MΩ | - |
| 体積抵抗率 | ≥3.4 × 10⁹ MΩ·cm | - |
Product Structure Analysis
TheLCD liquid crystal display PCB structure comprises the following layers from outside to inside:
1. Outer Layer – ENIG Surface Finish: Gold layer at 2U” (約 0.05 μm) protects the underlying nickel layer from oxidation. The bottom nickel layer at 3–6 μm serves as a diffusion barrier between copper and gold.
2. Copper Foil Layer: 1 オンス (約 35 μm) electrodeposited copper foil, etched to form the circuit pattern.
3. Dielectric Layer: FR-4 grade glass fabric impregnated with epoxy resin, 約 0.7 mm thick (single layer), providing electrical insulation and mechanical support.
4. Copper Foil Layer: Bottom layer 1 oz copper forming the bottom circuit pattern.
5. Outer Layer – ENIG Surface Finish: Symmetrical ENIG treatment matching the top layer.
製品の特徴: Why Choose UGPCB’s LCD Display PCB?
① High-Precision Manufacturing: Minimum hole diameter of 0.22 mm and minimum line width/spacing of 0.3 mm/0.27 mm support the routing requirements of high-density LCD driver boards.
② Premium Substrate Materials: Kingboard KB6165F high-end FR-4 material with Tg ≥150°C and UL 94 V-0 flammability rating ensures lead-free process compatibility and long-term reliability.
③ Standardized Surface Finish: わずか2U” process complies with IPC-4552, delivering excellent solderability, 耐酸化性, and extended shelf life.
④ Rigorous Quality Control: Products undergo full-process quality control per IPC-6012 Class 2 標準, covering hole diameter tolerance (±0.08 mm), hole copper thickness (≥20 μm), solder mask integrity, そして電気試験.
⑤ LCD-Optimized Design: インピーダンス制御, 信号の完全性, and power integrity are optimized specifically for liquid crystal display driving applications.
製造工程: From Raw Material to Finished Product
UGPCB follows a rigorous standard manufacturing process forLCD display PCBs:
1. 材料の切断 →2. Inner Layer Pattern Transfer (drill positioning and registration marks) →3. 掘削 (minimum hole diameter 0.22 mm± 0.08 mm) →4. Electroless Copper Deposition/Electroplating (ホールメタライゼーション, hole copper thickness ≥20 μm) →5. Outer Layer Pattern Transfer (線幅 0.3 mm / 間隔 0.27 mm) →6. パターンメッキ (copper build-up to 1 オンス) →7. エッチング →8. Solder Mask Printing →9. ENIG Surface Finish (同意する, gold thickness 2U”) →10. プロファイリング (寸法 147.2 × 65 mm) →11. 電気テスト (100% 電気試験) →12. 最終検査 (あおい + 目視検査) →13. Packaging and Shipping
典型的なアプリケーションシナリオ
📱 Consumer Electronics: Smartphone secondary displays, smartwatch displays, e-reader screen driver PCBs.
🏭 Industrial Control: PLC human-machine interfaces (HMI), industrial instrument displays, CNC operation panel display driver boards.
🚗 Automotive Electronics: In-vehicle infotainment systems, digital instrument clusters, head-up display (HUD) display control PCBs.
🏥 Medical Devices: Patient monitors, ultrasound diagnostic equipment, medical imaging system display driver circuit boards.
🏠 Smart Home: Smart access control system displays, smart appliance control panels, building intercom system display module PCBs.
UGPCBを選択する理由?
UGPCB brings years of LCD display PCB manufacturing experience to every project. We use premium raw materials like Kingboard KB6165F, strictly enforce IPC-6012 Class 2 品質基準, and operate high-precision drilling and circuit patterning equipment. 必要かどうか LCD PCBプロトタイピング or volume production, UGPCB delivers high-precision, high-reliability product solutions.
📞 Get Your LCD Display PCB Solution Today
UGPCB LCD liquid crystal display PCBs have been successfully deployed in numerous industrial, 自動車, and consumer electronics display projects. 必要かどうか LCD PCB prototyping for design validation or プリント基板 turnkey assembly services, UGPCB provides full-process support from PCB fabrication to プリント基板 SMTアセンブリ.
Contact UGPCB’s professional team today for your custom LCD display PCB solution!
📧 Email: [info@ugpcb.com]
📞 Phone: [+86-755-XXXXXXXX]
🌐 Website: [www.ugpcb.com]
Data Source Attribution
The technical standards and data cited in this document are derived from the following authoritative sources:
- IPC-6012 - リジッドプリント基板の認定および性能仕様 – Defines PCB hole diameter tolerances (standard ±0.08 mm), hole copper thickness (クラス 2 ≥20 μm), and performance class requirements
- IPC-2221 - Generic Standard on Printed Board Design – Specifies line width/spacing design requirements and current-carrying capacity calculation formulas
- IPC-4552 Revision A (issued 2017) - Performance Specification for Electroless Nickel/Immersion Gold (同意する) Plating for Printed Boards – Specifies ENIG deposit thickness requirements: nickel 3–6 μm, gold 0.04–0.10 μm
- UL 94 - Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances – V-0 rating requires flame self-extinguishing within 10 秒
- Kingboard KB6165F Product Datasheet – Substrate technical parameters (Tg ≥150°C, Td 325°C, UL 94 V-0, 等)
- ギガバイト/トン 4677 - Test Methods for Printed Boards – Used in conjunction with IPC standards as inspection references
