ЛОГОТИП УГКПБ
Обзор продукта: A High-Reliability PCB Solution for LCD Display Driving
УГКПБ представляетLCD Liquid Crystal Display PCB Circuit Board (Модель: UGPCB-LCD-001), Высокопроизводительность2-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 and 1 унция медной фольги (примерно 35 мкм). The surface finish employs theСОГЛАШАТЬСЯ (Электролетический никель/погружение золота) process at 2U” . The board measures 147.2 × 65 мм, with a minimum hole diameter of 0.22 mm and minimum line width/spacing of 0.3 mm/0.27 mm.
ЭтотLCD 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.
Определение продукта: What Is an LCD Liquid Crystal Display PCB?
Ан LCD Liquid Crystal Display PCB (Печатная плата) is a specialized circuit board designed for liquid crystal display driving systems. It performs three core functions: driving signal transmission, Распределение энергии, and timing control signal routing. В отличие от стандартного PCB circuit boards, анонца LCD display PCB demands tighter tolerances in line width precision, контроль импеданса, and surface flatness.
This product belongs to therigid double-sided PCB category with 2 слои (2л). It uses FR-4 grade flame-retardant material (UL 94 В-0 рейтинг) and supports both SMT (Технология поверхностного крепления) and through-hole component hybrid assembly processes. The board meets IPC-6012 Class 2 Требования к производительности, making it suitable for industrial electronics and consumer electronics applications.
Технические характеристики конструкции: Critical Parameters for LCD PCB Engineering
Материал подложки: The KB6165F Advantage
This product uses Kingboard KB6165F copper-clad laminate, which delivers the following key performance characteristics:
- Температура стеклянного перехода (Тг): ≥150°C, ensuring dimensional stability during lead-free reflow soldering processes
- Температура термического разложения (Тд): 325°С, providing excellent thermal reliability
- Рейтинг воспламеняемости: UL 94 В-0, with flame self-extinguishing within 10 seconds in vertical burn tests
- КТР (Коэффициент термического расширения): 12–15 ppm/°C in X-Y direction, 40–230 ppm/°C in Z direction, offering good thermal matching with LCD driver ICs
- Каф (Conductive Anodic Filament) Resistance: Excellent anti-CAF performance ensuring long-term reliability
- Совместимость без свинца: 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 слои (2л) with a standard 1.6 мм толщина доски. Для МПК-2221, 1.6 mm represents the most commonly used thickness specification for rigid печатные платы, 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 целостность сигнала. Under IPC-2221 standards, the minimum spacing requirement for conventional voltage (≤30V) digital signal traces is 0.1 мм (4 мил). This product’s 0.27 мм (примерно 10.6 мил) 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, а 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.
Минимальный диаметр отверстия
The minimum hole diameter of 0.22 мм (примерно 8.7 мил) falls within the precision drilling category. Under IPC-6012, the standard drilled hole diameter tolerance is ±0.08 mm (approximately ±3 mil) . Для 0.22 mm micro-vias, manufacturing tolerances are typically controlled within ±0.05 mm.
Поверхностная отделка: ENIG at 2U”
TheСОГЛАШАТЬСЯ (Электролетический никель/погружение золота) surface finish with 2U” толщина золота (примерно 0.05 мкм) complies with IPC-4552 requirements. IPC-4552 Revision A (issued in 2017) specifies gold deposit thickness of 0.04 мкм до 0.10 мкм (1.6 μin to 4.0 μin) and nickel thickness of 3 мкм до 6 мкм.
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
Принцип работы: Signal Transmission Mechanisms of the LCD Display PCB
TheLCD liquid crystal display PCB operates on two core functions: передача сигнала иРаспределение энергии.
1. Display Driver Signal Transmission: Display data from the main controller chip (MCU/SoC) travels through theПечатная плата 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 theпечатная плата‘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 (обычно 3.3 V or 5 В) through DC-DC conversion circuits to generate the multiple voltage levels required by the LCD panel, including VGH (gate-on voltage, обычно +15 V to +30 В), VGL (gate-off voltage, typically −5 V to −15 V), and AVDD (analog power voltage).
Классификация продуктов: LCD PCB Categories
LCD liquid crystal display PCBs can be classified along the following dimensions:
По количеству слоев
- Single-sided boards: Used for simple segment-code LCD displays
- Double-sided boards (2л): 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
По отделке поверхности
- 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
По приложению
- 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
| Параметр | Спецификация | Reference Standard |
|---|---|---|
| Laminate Material | KB6165F (Кингборд) | - |
| Тип ламината | FR-4 Glass Fabric Copper-Clad Laminate | UL 94 В-0 |
| Количество слоев | 2 слои (2л) | - |
| Толщина доски | 1.6 мм | МПК-2221 |
| Outer Layer Copper Thickness | 1 унция (35 мкм) | IPC-6012 Class 2 |
| Поверхностная отделка | ENIG 2U” (0.05 μm Au) | IPC-4552 |
| Nickel Layer Thickness | 3–6 μm (underlayer) | IPC-4552 Rev A |
| Минимальный диаметр отверстия | 0.22 мм | МПК-6012 |
| Минимальная ширина линии | 0.3 мм | МПК-2221 |
| Minimum Line Spacing | 0.27 мм | МПК-2221 |
| Размеры платы | 147.2 × 65 мм | - |
| Тг (Температура стеклянного перехода) | ≥150°C | - |
| Тд (Температура термического разложения) | 325°С | - |
| КТР (X-Y Direction) | 12–15 ppm/°C | - |
| Рейтинг воспламеняемости | UL 94 В-0 | UL 94 |
| Дуговое сопротивление | ≥60 seconds | - |
| Поверхностное удельное сопротивление | ≥2.6 × 10⁸ MΩ | - |
| Объемный удельное сопротивление | ≥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” (примерно 0.05 мкм) 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 унция (примерно 35 мкм) electrodeposited copper foil, etched to form the circuit pattern.
3. Dielectric Layer: FR-4 grade glass fabric impregnated with epoxy resin, примерно 0.7 толщина мм (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.
Особенности продукта: 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 В-0 flammability rating ensures lead-free process compatibility and long-term reliability.
③ Standardized Surface Finish: ENIG 2U” process complies with IPC-4552, delivering excellent solderability, стойкость к окислению, and extended shelf life.
④ Rigorous Quality Control: Products undergo full-process quality control per IPC-6012 Class 2 стандарты, covering hole diameter tolerance (±0.08 mm), hole copper thickness (≥20 μm), solder mask integrity, и электрические испытания.
⑤ LCD-Optimized Design: Контроль импеданса, целостность сигнала, and power integrity are optimized specifically for liquid crystal display driving applications.
Производственный процесс: От сырья к готовому продукту
UGPCB follows a rigorous standard manufacturing process forLCD display PCBs:
1. Материальная резка →2. Inner Layer Pattern Transfer (drill positioning and registration marks) →3. Бурение (minimum hole diameter 0.22 мм ± 0.08 мм) →4. Electroless Copper Deposition/Electroplating (hole metallization, hole copper thickness ≥20 μm) →5. Outer Layer Pattern Transfer (ширина линии 0.3 мм / расстояние 0.27 мм) →6. Pattern Plating (copper build-up to 1 унция) →7. Офорт →8. Solder Mask Printing →9. ENIG Surface Finish (СОГЛАШАТЬСЯ, gold thickness 2U”) →10. Профилирование (размеры 147.2 × 65 мм) →11. Электрические испытания (100% электрические испытания) →12. Заключительная проверка (АОИ + Визуальный осмотр) →13. Packaging and Shipping
Типичные сценарии применения
📱 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.
Почему выбирают UGPCB?
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 стандарты качества, and operate high-precision drilling and circuit patterning equipment. Нужен ли вам LCD Прототипирование печатной платы 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, автомобильный, and consumer electronics display projects. Нужен ли вам LCD PCB prototyping for design validation or печатная плата turnkey assembly services, UGPCB provides full-process support from PCB fabrication to печатная плата SMT Assembly.
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:
- МПК-6012 –Квалификационные и эксплуатационные характеристики жестких печатных плат – Defines PCB hole diameter tolerances (standard ±0.08 mm), hole copper thickness (Сорт 2 ≥20 μm), and performance class requirements
- МПК-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 (СОГЛАШАТЬСЯ) 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 секунды
- Kingboard KB6165F Product Datasheet – Substrate technical parameters (Tg ≥150°C, Td 325°C, UL 94 В-0, и т. д.)
- ГБ/Т 4677 –Test Methods for Printed Boards – Used in conjunction with IPC standards as inspection references
