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TFT LCD Display Module

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Non touch print cover lens application on Facial Recognition Security System

What is TFT LCD Display Module?

TFT LCD is a thin film transistor liquid crystal display, a liquid crystal display using TFT technology, which is an active matrix liquid crystal display.
TFT LCD is an active matrix LCD that uses A-Si, poly-Si, organic semiconductors, or oxides as the raw materials of the semiconductor layer TFT so that a large-size LCD with a wide visual angle and high color reproduction can be achieved

  • Display mode: TN TFT LCD, IPS TFT LCD
  • Display quality: high resolution, wide visual angle
  • Working range: wide operating temperature, high brightness, anti-glare
  • Touch quality: capacitive touch, resistive touch, multi-touch
  • Display size: 0.42 inches-15 inches, customizable size

What is TN TFT LCD?

TN TFT LCD is a classification of TFT LCD, a thin film transistor liquid crystal display based on the twisted nematic effect. The technology of twisted nematic LCD panel is already very mature, so the cost of TN TFT LCD is very low and the customization range is wide.

  • Technical features: low power consumption, short response time
  • Display module size: 0.42-inch to 15-inch, customizable size
  • Customization direction: shape, brightness, cover, touch, working range
  • Application solutions: embedded display, industrial display, medical equipment display, portable device display, automotive color tft cluster display
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application on automotive dashboard
application on Smart Rear View Mirror

What is IPS TFT LCD?

IPS is also the most widely used classification of TFT LCD. Due to its good display quality and wide visual angle, it is currently used in high-end consumer electronic products such as TVs, computer monitors, and mobile phones.

  • Technical features: high color reproduction quality and the visual angle can generally reach more than 120 degrees
  • Display module size: 0.42-inch-15-inch, customizable size
  • Customization direction: shape, brightness, cover, touch, working range
  • Application solutions: tablet, car infotainment system screens, and smart rear view mirror
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Expert in small & medium display modules

TFT LCD Module

Size

LCD Module Shapes

Viewing Angle

Interface

Other products are equally excellent

Capacitive Button

Custom Cover Lens

Customize a specific cover to expand additional information or functions for the product, realize human-computer interaction functions, and enhance user experience

Cover size: 0.42-inch-15-inch, matching size with the display module
Cover classification: glass cover, printed cover
Additional functions: anti-glare, anti-fingerprint, anti-corrosion, etc.
Application: smart parking system, car capacitive button, tablet cover lens

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Ceritification

Certification of Hua Xian Jing
application on smart watch

Leader TFT LCD Display Supplier in China

Since its establishment in 2011, Huaxianjing has been focusing on small and medium-sized LCD display modules. Today, we have established an efficient and complete LCD display module production process, which enables us to cope with dealer orders from all over the world.

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Production Factories
0
Manufacturing Experiences
0
Production Lines
0
pcs Daily Output
200000

Cooperation:

byd
haier
hannstar
siltronic
huawei
yadea

Production Process

The production process of TFT LCDs involves multiple detailed steps. The following is just a simplified production process. You need to visit our factory to learn the detailed production process.

cutting glasss

1. Cutting Glass

Description: Large sheets of glass are cut into the desired size for individual TFT LCD panels.

Equipment: Precision glass cutting machines.

Quality Control: Inspect edges for chips or cracks that could propagate during subsequent processing steps.

sorting glass

2. Sorting Glass

Description: The cut glass panels are sorted based on size, thickness, and quality.

Equipment: Automated sorting machines with sensors.

Quality Control: Visual and automated inspections to ensure uniformity and absence of defects.

Ultrasonic Cleaning of Glass

3. Ultrasonic Cleaning of Glass

Description: The glass panels are cleaned using ultrasonic waves to remove dust, debris, and contaminants.

Equipment: Ultrasonic cleaning tanks.

Quality Control: Inspect for cleanliness under UV light or with particle counters.

drying

4. Drying Glass

Description: The cleaned glass panels are dried to remove any residual moisture.

  • Equipment: Drying ovens or air blowers.
  • Quality Control: Visual inspection for moisture or drying marks.
Attach the polarizer to both sides of the glass

5. Attaching Polarizers to Both Sides of the Glass

Description: Polarizer films are adhered to both sides of the glass to control light transmission through the LCD.

Equipment: Lamination machines.

Process:

  • Align polarizer films with the glass panels.
  • Use heat and pressure to adhere the films evenly.

Quality Control: Inspect for bubbles, misalignment, and adhesion quality.

bonding

6. Bonding FPC (Flexible Printed Circuit) to the Screen

Description: The FPC, which contains the electrical connections for the display, is bonded to the glass panel.

Equipment: Bonding machines with precision alignment tools.

Process:

  • Align the FPC with the connection pads on the glass.
  • Use heat and pressure to bond the FPC to the glass.

Quality Control: Electrical testing to check for connectivity and proper bonding.

automatic assmbly

7. Automatic Assembly

Description: Various components of the TFT LCD are assembled automatically.

Equipment: Automated assembly lines.

Process:

  • Assemble the glass panel with backlight units, drivers, and housing.
  • Use automated tools to ensure precision and consistency.

Quality Control: Inspect for assembly defects such as misalignments, loose parts, or contamination.

testing circuit

8. Testing Circuit

Description: The assembled TFT LCDs undergo rigorous testing to ensure functionality and performance.

Equipment: Testing rigs and software.

Process:

  • Perform electrical testing to verify the circuitry.
  • Test for image quality, brightness, color accuracy, and response time.
  • Perform stress tests to check for durability and reliability.

Quality Control: Detailed inspection and logging of test results. Defective units are either repaired or discarded.

Where are TFT LCD module application on?

Driving Recorder
Automotive
Car Dashboard
Smart Rear View Mirror
Building Automation
remote control
GPS Device
Mobile Phone

Why Choose TFT LCD Display Module?

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High Image Quality

TFT LCDs offer excellent color reproduction, high brightness, and sharp image quality. They provide clear and vibrant displays, making them ideal for devices like smartphones, tablets, and computer monitors.

Color Reproduction

TFT LCDs can display a wide range of colors, providing vibrant and accurate color reproduction. This is important for applications that need precise color representation, such as photography and medical imaging.

Durability and Lifespan

Unlike OLED screens, TFT LCDs do not suffer from burn-in, making them suitable for static images and prolonged use. The typical lifespan of a TFT LCD is around 30,000 to 60,000 hours, Factors like temperature, humidity, and usage patterns can affect longevity.

Cost

Advances in manufacturing technology have reduced the cost of producing TFT LCDs, making them widely accessible and affordable. Prices vary based on size, resolution, features, and brand. High-resolution, high-brightness.

TFT LCD - All You Need to Know

TFT LCD technology is a versatile and widely used display technology known for its high resolution, color accuracy, fast response times, and energy efficiency. These characteristics make TFT LCDs suitable for a broad range of applications, from everyday consumer electronics to specialized professional tools. Understanding these details helps in selecting the right TFT LCD for specific needs, ensuring optimal performance and user experience.

Application On Retail Sale System

1. Thin-Film Transistor (TFT) Technology

  • Structure: Each pixel in a TFT LCD contains a thin-film transistor that acts as a switch. This configuration allows each pixel to be controlled individually, enhancing the display’s ability to handle complex images and rapid motion.
  • Active Matrix vs. Passive Matrix:
    • Active Matrix (TFT): Each pixel is controlled by a transistor, enabling precise control over brightness and color, reducing flicker, and providing faster response times.
    • Passive Matrix: Pixels are controlled by a simple grid of wiring without individual transistors, leading to slower response times and lower image quality.

2. High Resolution

  • Pixel Density: Modern TFT LCDs support high pixel densities, such as 300 PPI (pixels per inch) or higher, ensuring that the display is sharp and detailed. This is crucial for high-definition video, detailed graphics, and text clarity.

3. Viewing Angles

  • In-Plane Switching (IPS): IPS technology provides wide viewing angles, typically 178° horizontally and vertically, minimizing color distortion and maintaining image quality from various angles.
  • Vertical Alignment (VA): VA panels offer good contrast ratios and viewing angles, though they may have slight color shifts at extreme angles.

4. Response Time

  • Speed Measurement: Response time is measured in milliseconds (ms). Modern TFT LCDs typically have response times between 1 to 5 ms, reducing motion blur and ghosting. Gaming monitors and high-speed displays may have even lower response times, around 0.1 to 1 ms.
  • Importance for Motion: Faster response times are crucial for applications requiring quick image transitions, such as gaming, fast-action video, and real-time simulations.

Detailed Precautions for TFT LCD Handling

By following these detailed precautions, you can significantly enhance the longevity and performance of TFT LCDs. Proper handling, cleaning, environmental control, and regular maintenance are crucial to prevent damage and ensure that the display operates at its best throughout its lifespan.

1. Physical Handling

Avoid Excessive Pressure:

  • Screen Pressure: Never press hard on the screen. Excessive pressure can damage the liquid crystals and the underlying thin-film transistors, causing permanent display damage like dead pixels or color distortions.
  • Transport and Installation: When transporting or installing the display, handle it by the edges or the frame, not the screen itself.

Protection Against Impact:

  • Shock Absorption: Use protective cases or padding when transporting the display to absorb shocks and prevent mechanical damage.
  • Stable Placement: Ensure that the display is placed on a stable, flat surface to prevent accidental tipping or falls.

Avoid Flexing:

Screen Flex: Do not bend or flex the display as this can damage the internal components and lead to malfunction.

2. Environmental Considerations

Temperature and Humidity Control:

  • Stable Environment: Use the display in a stable environment where temperature and humidity are within the specified ranges (typically 0°C to 40°C for operation, -20°C to 60°C for storage, and 20% to 80% non-condensing humidity).
  • Avoid Rapid Changes: Sudden changes in temperature and humidity can cause condensation and potential damage to the display.

Direct Sunlight and Heat Sources:

  • Sunlight Exposure: Keep the display away from direct sunlight, which can cause overheating, discoloration, and screen degradation.
  • Heat Sources: Avoid placing the display near heat sources such as radiators or heat vents.

Dust and Particle Control:

  • Dust Covers: Use dust covers when the display is not in use to prevent dust accumulation.
  • Clean Environment: Operate the display in a clean environment to minimize dust and particle exposure.

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