Technical Specifications Overview
All CHOT 50-inch and 70-inch open cell panels in this category are 4K UHD (3840×2160) a-Si TFT-LCD CELL products supplied without backlight unit, driver board, or enclosure. This allows integration partners to configure complete display modules according to target TV or commercial display application requirements. The 50-inch series uses an active area of 1095.84 × 616.41 mm, while the 70-inch series measures approximately 1549 × 872 mm.
| Resolution | 3840 × 2160 (UHD) |
| Pixel Pitch (50") | 0.285 × 0.285 mm |
| Pixel Pitch (70") | 0.403 × 0.403 mm |
| Aspect Ratio | 16:9 |
| Color Depth | 10-bit (1.07B) |
| Contrast Ratio | 5000:1 (Typ.) |
| Backlight | Not included (CELL) |
| Viewing Angle | 89/89/89/89 (CR≥10) |
| Color Gamut | 70% NTSC |
| Response Time | 8 – 9.5 ms (GtG) |
| Interface | V-by-One / P2P / ISP |
| Refresh Rate | 60 Hz |
| Active Area (50") | 1095.84 × 616.41 mm |
| Active Area (70") | ≈1549 × 872 mm |
| Operating Temp | 0°C – 50°C |
Quality Control and Inspection Standards
Every CHOT open cell TV panel undergoes a multi-stage incoming quality control (IQC) process before entering available inventory. Inspection follows ISO 13406-2 pixel defect classification and adheres to MIL-STD-105E (ANSI/ASQ Z1.4) sampling procedures with an AQL of 0.65 for critical defects and 1.0 for major defects.
Functional testing includes full-screen red, green, blue, white, and black pattern verification to detect sub-pixel defects, mura, line defects, and connector contact issues. Electrical connectivity is validated through V-by-One / P2P signal integrity checks across the full 60Hz refresh range. Mechanical inspection verifies dimensional tolerance and confirms absence of polarizer scratches, delamination, or cell-edge damage that could compromise sealing integrity.
Panels failing any inspection criterion are segregated and returned to the upstream fabrication channel, ensuring only grade-A open cell TV panels reach B2B customers. Each shipment includes a corresponding inspection report with batch-level test data.
Target Application Scenarios
CHOT 50-inch and 70-inch UHD open cell panels serve as the core display component across multiple B2B integration verticals. The large-format active area and broad interface compatibility enable deployment across the following primary use cases.
TV OEM & ODM Manufacturing
Standard 50-inch and 70-inch UHD cells for flat-screen TV manufacturing, supporting V-by-One and P2P driver board integration with 60Hz frame rates.
LCD TV Screen Replacement
Large-format CELL panels for TV repair services and screen replacement channels, delivering factory-grade picture quality for aftermarket TV restoration.
Commercial & Digital Signage
Large-format cells for hotel, retail, and corporate digital signage displays, hospitality TVs, and information kiosk systems requiring immersive visual impact.
Gaming & Home Entertainment
UHD cells for gaming televisions and home cinema displays, featuring wide viewing angles and consistent color reproduction for immersive content.
Supply Chain and Fulfillment Capabilities
Inventory is maintained across bonded warehouse facilities in the Guangzhou-Shenzhen-Hong Kong Greater Bay Area, with direct access to Shenzhen Yantian and Hong Kong international ports for export consolidation. Cross-border logistics to Southeast Asian manufacturing hubs, including Hanoi and Ho Chi Minh City, is supported through established freight forwarding channels with shock-resistant and temperature-controlled packaging protocols for large-format open cell panels.
Minimum Order Quantity
Standard MOQ starts at 50 pieces per model for in-stock 50-inch configurations and 25 pieces for 70-inch panels. Trial sample orders of 5–10 units are available for qualification testing, with sample cost deductible against the first bulk purchase order.
Lead Time and Shipping
In-stock models ship within 3–5 business days of order confirmation. Bulk sea-freight consolidation to Southeast Asia requires 7–14 days transit. Air-freight options are available for urgent production requirements.
Packaging and Handling
Large-format panels are packed in EPE foam-lined cartons with anti-static protection and edge-corner reinforcement. Palletized shipping with shock indicators is provided for full-container orders.
Frequently Asked Questions
What is the difference between a CHOT open cell panel and a complete TV display module?
A CHOT open cell panel consists of the LCD glass cell, polarizer films, and driver IC (TCON) mounted on the panel flex cable. It does not include a backlight unit, metal frame, driver board, or enclosure. This form factor enables OEM and ODM manufacturers to integrate the panel into custom-designed TV products with self-selected backlight brightness, driver interfaces, and mechanical housings. A complete display module, by contrast, arrives fully assembled with all components pre-integrated.
Which interface standard should be selected for a new TV design?
V-by-One HS is the preferred interface for new UHD TV designs, offering high bandwidth with reduced pin count and strong EMI performance at 4K resolution. P2P (point-to-point) interfaces such as the 12-lane configuration on CV500U2-L02 are compatible with a wide range of modern TCONs and enable lower-cost mainboard solutions. ISP remains available for legacy driver board compatibility on selected 50-inch models. Interface selection should be matched against the driver board's TCON timing controller capabilities.
How is panel compatibility verified for a specific driver board?
Compatibility requires matching three parameters: interface type (V-by-One, P2P, or ISP), connector pin count and pinout assignment, and display timing parameters including resolution, refresh rate, and horizontal/vertical sync values. Detailed specification sheets for each panel model include timing diagrams, connector pin definitions, and mechanical drawings. Sample panels can be provided for driver board validation before bulk commitment.
What pixel defect policy applies to shipped panels?
All panels are classified as Grade-A under ISO 13406-2, which permits a maximum of 2 bright sub-pixel defects, 2 dark sub-pixel defects, and 2 clustered defects within a 5mm radius. Panels exceeding these thresholds are rejected during incoming quality control. For customers requiring zero-defect (Class I) panels, an additional 100% sorting service is available at a supplementary cost per unit. Defect claims must be reported within 7 days of receipt with photographic evidence and batch number.
Do the 50-inch and 70-inch panels ship with backlight units?
No. All CHOT open cell panels in this category are supplied as CELL-only products without integrated backlight. Customers integrate external backlight units and driver boards during TV assembly. QF ELECTRONICS can recommend matching backlight and driver board solutions for both the 50-inch and 70-inch series based on target brightness and cost requirements. Confirm active area and connector layout against your housing design before committing to volume orders.
Request a Quote or Sample for CHOT 50-Inch & 70-Inch Open Cell TV Panels
Submit target model, required quantity, and destination port for a detailed quotation within 24 business hours. Technical specification sheets and sample panel availability can be confirmed upon request.
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