1. TFT LCD panel large board cutting:
The TFT panel substrate that has been made, with cutting equipment for slitting small pieces, using automatic laser cutting machine into small pieces, testing, vacuum packaging.
2. Polarizer attachment:
Polarizers are applied at the top and bottom in front of the TFT panel to ensure that the angled light from the polarizer is correctly modulated through the liquid crystal layer.
3. Driver IC Bonding (Driver IC):
The driver chip is attached to a small TFT panel substrate using fully automated equipment such as COG (Chip on Glass) or COF (Chip on Film).
4. FPCA Bonding:
Connect the COG display panel to a printed circuit board (PCB) or flexible printed circuit (FPC) to provide power and signal inputs.
5. ACF particle examination
Examination of COG, FOG bonded particles by differential dry microscopy.
6. Electrical performance test:
Sort FOG semi-finished products with test fixtures for RGB, grayscale, and white-black screen tests.
7. Sealant:
COG IC sealing of tested and qualified FOG with fully automated equipment, UV adhesive curing behind between FPC and TFT panel.
8. Backlight assembly:
After the sealer cures the FOG, the backlight unit (BL), including components such as light guides, reflectors, diffusers, and LED strips, needs to be installed to ensure that the screen emits light uniformly.
9. Functional testing:
Perform a full function test on each TFT LCD display to check for bad dots, uneven brightness, and other problems.
10. Burn-in Test:
The display is powered up for 48 hours to simulate long-term usage conditions to detect potential reliability issues.
11. Visual inspection and packaging:
Perform a final cosmetic inspection to ensure there is no physical damage or other surface defects.
Qualified products are properly packaged, Quality Assurance (QA), strict quality control measures are implemented to ensure that the product meets the expected quality standards, and finally warehoused for shipment.
3.5-inch LCD screen 320 x 480
Size: 3.5 dots Resolution: 320 x 480 dots Viewing Angle: ALL Interface Type: RGB(18bit) Driver Chip: ST7796S Touch Mode: RTP/CTP Backlight Brightness: 350 cd/m² Overall Dimension:...
In actual TFT display module production, the entire process not only follows the basic steps outlined above, but is also fully automated. Each step relies on precision equipment and technology to ensure a high degree of accuracy and consistency. Each step requires highly accurate operation and strict environmental control in order to ensure the quality and stability of the final product.
ICP DAS follows strict production and quality procedures to ensure the high quality and stability of our TFT LCD displays.
- Fully automated production lineTricolor has three fully automated COG bonding production lines and a class 10,000 clean room with a monthly production capacity of more than 800 K. The highly automated equipment helps to reduce human error and improve production efficiency and product quality.
- Quality Management System Certification: The company is rigorously certified to international quality management systems such as ISO 9001:2015, demonstrating that it maintains the highest level of quality management and continuous improvement standards in all its operations.
- Process Control Program: ICP DAS has implemented a detailed production quality process control program, covering from incoming material inspection (IQC), in-process online quality control (IPQC), to finished product pre-shipment quality check (OQC). Each step of the process has clear operation specifications, inspection items, instruments and equipment used, as well as an exception handling mechanism to ensure that each process is under strict control.
- Precision testing equipment: ICP DAS is equipped with advanced testing equipment, such as RGB and luminance analyzers, cold and hot shock equipment, vibration equipment, FPC tensile testers, salt spray testers, etc., which are used to perform stringent performance tests, including but not limited to temperature tests, COG/FOG tests, leveling tests, and barometric pressure tests.
- Periodic calibration and maintenance: The calibration accuracy of the Bonding equipment is performed weekly to ensure that the equipment is always in optimal working condition.
- Direct rate management: The importance of a one-time pass rate of 99.5% or higher reflects the company's focus on first-time pass rates in the production process, which reduces the potential for rework and improves overall efficiency.
- Aging test: For finished LCM (Liquid Crystal Module) products, aging tests for display failure are conducted to verify reliability and stability for long-term use.
- Customer-oriented valuesHCPC insists on the quality policy of "Quality and Integrity" and puts customer satisfaction in the first place to provide high-quality products and services.
In summary, ICP DAS not only adheres to but also strictly enforces a complete set of production and quality procedures in the production of its TFT LCD displays to ensure that it provides reliable and high-performance products to its customers.
