โลโก้ UGPCB
ภาพรวมผลิตภัณฑ์: A High-Reliability PCB Solution for LCD Display Driving
UGPCB introduces theLCD Liquid Crystal Display PCB Circuit Board (แบบอย่าง: UGPCB-LCD-001), a high-performance2-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 ฟอยล์ทองแดงออนซ์ (ประมาณ 35 μm). The surface finish employs theเห็นด้วย (Electroless Nickel/Immersion Gold) process at 2U” . The board measures 147.2 × 65 มม, with a minimum hole diameter of 0.22 mm and minimum line width/spacing of 0.3 mm/0.27 mm.
นี้LCD 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.
คำจำกัดความของผลิตภัณฑ์: What Is an LCD Liquid Crystal Display PCB?
หนึ่ง LCD Liquid Crystal Display PCB (แผงวงจรพิมพ์) is a specialized circuit board designed for liquid crystal display driving systems. It performs three core functions: driving signal transmission, การกระจายพลังงาน, and timing control signal routing. Unlike standard PCB circuit boards, หนึ่ง LCD display PCB demands tighter tolerances in line width precision, การควบคุมความต้านทาน, and surface flatness.
This product belongs to therigid double-sided PCB category with 2 ชั้น (2l). It uses FR-4 grade flame-retardant material (อล 94 วี-0 ได้รับคะแนน) and supports both SMT (เทคโนโลยี Mount Surface) and through-hole component hybrid assembly processes. The board meets IPC-6012 Class 2 performance requirements, making it suitable for industrial electronics and consumer electronics applications.
Design Specifications: Critical Parameters for LCD PCB Engineering
Substrate Material: The KB6165F Advantage
This product uses Kingboard KB6165F copper-clad laminate, which delivers the following key performance characteristics:
- อุณหภูมิการเปลี่ยนแก้ว (ทีจี): ≥150°C, ensuring dimensional stability during lead-free reflow soldering processes
- อุณหภูมิการสลายตัวทางความร้อน (TD): 325องศาเซลเซียส, providing excellent thermal reliability
- คะแนนความไวไฟ: อล 94 วี-0, with flame self-extinguishing within 10 seconds in vertical burn tests
- ซีทีอี (ค่าสัมประสิทธิ์การขยายตัวทางความร้อน): 12–15 ppm/°C in X-Y direction, 40–230 ppm/°C in Z direction, offering good thermal matching with LCD driver ICs
- คาเฟ่ (Conductive Anodic Filament) Resistance: 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 ชั้น (2l) with a standard 1.6 mm board thickness. Per IPC-2221, 1.6 mm represents the most commonly used thickness specification for rigid PCBS, 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 ความสมบูรณ์ของสัญญาณ. Under IPC-2221 standards, the minimum spacing requirement for conventional voltage (≤30V) digital signal traces is 0.1 มม (4 MIL). This product’s 0.27 มม (ประมาณ 10.6 MIL) 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, อัน 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.
เส้นผ่านศูนย์กลางรูขั้นต่ำ
The minimum hole diameter of 0.22 มม (ประมาณ 8.7 MIL) falls within the precision drilling category. Under IPC-6012, the standard drilled hole diameter tolerance is ±0.08 mm (approximately ±3 mil) . สำหรับ 0.22 mm micro-vias, manufacturing tolerances are typically controlled within ±0.05 mm.
พื้นผิวเสร็จสิ้น: ENIG at 2U”
ที่เห็นด้วย (Electroless Nickel/Immersion Gold) surface finish with 2U” gold thickness (ประมาณ 0.05 μm) complies with IPC-4552 requirements. IPC-4552 Revision A (issued in 2017) specifies gold deposit thickness of 0.04 ไมโครเมตรถึง 0.10 μm (1.6 μin to 4.0 μin) and nickel thickness of 3 ไมโครเมตรถึง 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
หลักการทำงาน: Signal Transmission Mechanisms of the LCD Display PCB
ที่LCD liquid crystal display PCB operates on two core functions: การส่งสัญญาณ และการกระจายพลังงาน.
1. Display Driver Signal Transmission: Display data from the main controller chip (MCU/SoC) travels through thePCB circuit board 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 theพีซีบี‘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: ที่LCD 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: ที่LCD circuit board converts the input power (โดยทั่วไป 3.3 V or 5 วี) through DC-DC conversion circuits to generate the multiple voltage levels required by the LCD panel, including VGH (gate-on voltage, โดยทั่วไป +15 V to +30 วี), VGL (gate-off voltage, typically −5 V to −15 V), and AVDD (analog power voltage).
การจำแนกประเภทผลิตภัณฑ์: LCD PCB Categories
LCD liquid crystal display PCBs can be classified along the following dimensions:
โดยการนับเลเยอร์
- 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
โดยพื้นผิวเสร็จสิ้น
- 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
โดยการสมัคร
- 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
| พารามิเตอร์ | ข้อมูลจำเพาะ | Reference Standard |
|---|---|---|
| Laminate Material | KB6165F (Kingboard) | - |
| ประเภทลามิเนต | FR-4 Glass Fabric Copper-Clad Laminate | อล 94 วี-0 |
| จำนวนเลเยอร์ | 2 ชั้น (2l) | - |
| ความหนาของบอร์ด | 1.6 มม | ไอพีซี-2221 |
| Outer Layer Copper Thickness | 1 ออนซ์ (35 μm) | IPC-6012 Class 2 |
| พื้นผิวเสร็จสิ้น | ENIG 2U” (0.05 μm Au) | IPC-4552 |
| Nickel Layer Thickness | 3–6 μm (underlayer) | IPC-4552 Rev A |
| เส้นผ่านศูนย์กลางรูขั้นต่ำ | 0.22 มม | ไอพีซี-6012 |
| Minimum Line Width | 0.3 มม | ไอพีซี-2221 |
| Minimum Line Spacing | 0.27 มม | ไอพีซี-2221 |
| Board Dimensions | 147.2 × 65 มม | - |
| ทีจี (อุณหภูมิการเปลี่ยนแก้ว) | ≥150°C | - |
| TD (อุณหภูมิการสลายตัวทางความร้อน) | 325องศาเซลเซียส | - |
| ซีทีอี (X-Y Direction) | 12–15 ppm/°C | - |
| คะแนนความไวไฟ | อล 94 วี-0 | UL 94 |
| ความต้านทานส่วนโค้ง | ≥60 seconds | - |
| ความต้านทานพื้นผิว | ≥2.6 × 10⁸ MΩ | - |
| ความต้านทานระดับเสียง | ≥3.4 × 10⁹ MΩ·cm | - |
Product Structure Analysis
ที่LCD liquid crystal display PCB structure comprises the following layers from outside to inside:
1. Outer Layer – ENIG Surface Finish: Gold layer at 2U” (ประมาณ 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 ออนซ์ (ประมาณ 35 μm) electrodeposited copper foil, etched to form the circuit pattern.
3. Dielectric Layer: FR-4 grade glass fabric impregnated with epoxy resin, ประมาณ 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.
Product Features: 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 วี-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, ความต้านทานต่อการเกิดออกซิเดชัน, and extended shelf life.
④ Rigorous Quality Control: Products undergo full-process quality control per IPC-6012 Class 2 มาตรฐาน, covering hole diameter tolerance (±0.08 mm), hole copper thickness (≥20 μm), solder mask integrity, and electrical testing.
⑤ LCD-Optimized Design: การควบคุมความต้านทาน, ความสมบูรณ์ของสัญญาณ, and power integrity are optimized specifically for liquid crystal display driving applications.
กระบวนการผลิต: From Raw Material to Finished Product
UGPCB follows a rigorous standard manufacturing process forLCD display PCBs:
1. การตัดวัสดุ →2. Inner Layer Pattern Transfer (drill positioning and registration marks) →3. การขุดเจาะ (minimum hole diameter 0.22 มม. ± 0.08 มม) →4. Electroless Copper Deposition/Electroplating (hole metallization, hole copper thickness ≥20 μm) →5. Outer Layer Pattern Transfer (ความกว้างของเส้น 0.3 มม / ระยะห่าง 0.27 มม) →6. Pattern Plating (copper build-up to 1 ออนซ์) →7. การแกะสลัก →8. Solder Mask Printing →9. ENIG Surface Finish (เห็นด้วย, gold thickness 2U”) →10. Profiling (ขนาด 147.2 × 65 มม) →11. การทดสอบไฟฟ้า (100% การทดสอบทางไฟฟ้า) →12. การตรวจสอบขั้นสุดท้าย (Aoi + visual inspection) →13. Packaging and Shipping
สถานการณ์แอปพลิเคชันทั่วไป
📱 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.
ทำไมต้องเลือก 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 quality standards, and operate high-precision drilling and circuit patterning equipment. ไม่ว่าคุณจะต้องการ LCD PCB Prototyping 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, ยานยนต์, and consumer electronics display projects. ไม่ว่าคุณจะต้องการ LCD PCB prototyping for design validation or พีซีบี turnkey assembly services, UGPCB provides full-process support from PCB fabrication to พีซีบี แอสเซมบลี SMT.
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]
การระบุแหล่งที่มาของข้อมูล
The technical standards and data cited in this document are derived from the following authoritative sources:
- ไอพีซี-6012 -Qualification and Performance Specification for Rigid Printed Boards – Defines PCB hole diameter tolerances (standard ±0.08 mm), hole copper thickness (ระดับ 2 ≥20 μm), and performance class requirements
- ไอพีซี-2221 -มาตรฐานทั่วไปเกี่ยวกับการออกแบบแผ่นพิมพ์ – 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 (เห็นด้วย) Plating for Printed Boards – Specifies ENIG deposit thickness requirements: nickel 3–6 μm, gold 0.04–0.10 μm
- อล 94 -Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances – V-0 rating requires flame self-extinguishing within 10 ไม่กี่วินาที
- Kingboard KB6165F Product Datasheet – Substrate technical parameters (Tg ≥150°C, Td 325°C, อล 94 วี-0, ฯลฯ)
- GB/T 4677 -Test Methods for Printed Boards – Used in conjunction with IPC standards as inspection references
