INDUSTRY COMPONENT

TFT Array

TFT Array is the active matrix substrate in LCD/TFT screens that controls individual pixels through thin-film transistors.

Component Specifications

Definition
A TFT (Thin-Film Transistor) Array is the fundamental electronic component in LCD/TFT displays that forms the active matrix substrate. It consists of a grid of thin-film transistors deposited on a glass substrate, with each transistor corresponding to a single pixel. The array controls the voltage applied to liquid crystal cells, enabling precise pixel-by-pixel manipulation for image display. This component serves as the switching mechanism that determines the on/off state and brightness of each pixel, making it essential for high-resolution, fast-response displays used in monitors, televisions, smartphones, and industrial control panels.
Working Principle
The TFT Array operates as an active matrix addressing system. Each thin-film transistor acts as a switch for its corresponding pixel electrode. When a gate line is activated, the transistor turns on, allowing a data voltage to charge the pixel capacitor. This voltage controls the orientation of liquid crystal molecules, modulating light transmission. The transistors maintain the charge until the next refresh cycle, enabling stable image display without flicker. The array uses amorphous silicon (a-Si), low-temperature polysilicon (LTPS), or oxide semiconductor (IGZO) technologies to achieve different performance characteristics.
Materials
Glass substrate (typically Corning Eagle XG or similar alkali-free glass), amorphous silicon (a-Si), silicon nitride (SiNx) gate insulator, aluminum or copper metallization layers, indium tin oxide (ITO) transparent electrodes, photoresist for patterning, and various passivation layers.
Technical Parameters
ParameterTypical rangeNotes & selection driver
ResolutionUp to 8K (7680×4320)
Pixel Pitch50-300 μm
Response Time1-20 ms
Aperture Ratio50-80%
Operating Voltage3-15 V
Substrate Thickness0.3-0.7 mm
Transistor Mobility0.5-30 cm²/V·s
Operating Temperature-20°C to 70°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 13406-2, ISO 9241-307, IEC 61747, JEDEC JESD22, VESA DisplayPort

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Electrostatic discharge damage during handling
  • Glass substrate breakage
  • Moisture absorption affecting performance
  • Thermal stress causing delamination
  • Gate oxide breakdown from voltage spikes
FMEA Triads
Trigger: Electrostatic discharge during assembly
Failure: Transistor gate oxide breakdown
Mitigation: Implement ESD-protected workstations, use grounded tools, and apply antistatic packaging
Trigger: Thermal expansion mismatch between layers
Failure: Interconnect cracking and open circuits
Mitigation: Use materials with matched CTE, implement stress-relief structures, and control curing temperatures
Trigger: Photolithography alignment errors
Failure: Short circuits between adjacent pixels
Mitigation: Implement automated optical inspection, use precision alignment systems, and establish statistical process control

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±2 μm for critical dimensions, ±0.5° for alignment, <0.1% defective pixels (ISO 13406-2 Class I)
Test Method
Automated optical inspection for defects, electrical testing of transistor characteristics, light leakage measurement, and environmental testing per IEC 60068 standards

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of TFT Array

Manufacturer profiles associated with TFT Array.

Sourcing TFT Array from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Serial Interface
Serial interface for industrial data transmission between IoT gateways and legacy equipment using RS-232/422/485 protocols.
Marking Ink
Specialized ink for permanent identification on surface mount resistors during manufacturing.
Dielectric Layer
Insulating layer in surface mount capacitors that stores electrical energy through polarization.
Optical Window
Transparent optical component for light transmission in polycarbonate lens housings

Frequently Asked Questions

What is the difference between TFT Array and passive matrix displays?

TFT Arrays use active matrix addressing where each pixel has its own transistor switch, providing faster response, better contrast, and higher resolution compared to passive matrix displays that use simpler row/column addressing.

What causes dead pixels in TFT Arrays?

Dead pixels result from transistor failures, electrode defects, or contamination during manufacturing. Stuck pixels (always on/off) typically indicate transistor or capacitor malfunctions, while dark pixels often result from electrode breaks.

How does TFT technology affect display power consumption?

TFT Arrays with higher mobility materials like LTPS or IGZO require lower operating voltages, reducing power consumption. The aperture ratio (percentage of light-transmitting area) also significantly impacts backlight power requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Request Manufacturing Insight for TFT Array

Thank you. Your request has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.
XOR Gate
Get QuotesChat