एलसीडी डिस्प्ले कैसे बनाये जाते हैं?,सिल

एलसीडी डिस्प्ले विनिर्माण प्रक्रिया (सीओबी विधि)

सिल (बोर्ड पर चिप) प्रौद्योगिकी एक कॉम्पैक्ट डिज़ाइन में एलसीडी पैनल को अन्य प्रमुख घटकों के साथ एकीकृत करती है. Here’s an outline of how LCD displays are made using the सिल method:

1. एलसीडी का मूल कार्य सिद्धांत

• Liquid Crystal Technology: Understanding the behavior of liquid crystals and how they modulate light when subjected to an electric field.
• Pixel Formation: Arrangement of liquid crystal cells between two polarizers, with individual control over each pixel using electrodes.
• Backlight System: Ensuring uniform lighting behind the liquid crystals, typically using LED backlights.

2. सामग्री की आवश्यकता

• Glass Substrate: Transparent glass sheets for the front and rear panels.
• Liquid Crystal Material: Specially formulated liquid crystal compounds.
• Polarizers: Sheets that allow light of a specific polarization to pass through.
• Electrodes: Conductive layers, usually made of ITO (Indium Tin Oxide).
• Backlight Unit: LEDs or other light sources to provide the necessary backlighting.
• Adhesives and Seals: Used to fix components and prevent contamination.

3. ग्लास सब्सट्रेट का निर्माण

• Glass Cutting: Large glass substrates are cut into required sizes.
• Cleaning: Clean the substrate to remove dust and particles.
• ITO Coating: A transparent conductive coating (ITO) is applied to the glass for the pixel electrodes.

4. पैटर्निंग और सर्किट प्रिंटिंग

• Electrode Patterning: Use lithography and etching techniques to create fine electrode patterns on the glass.
• COB Integration: In COB, the display driver IC is directly bonded onto the glass substrate.
  • Bare Chip Mounting: The bare driver chip (without a package) is placed directly onto the PCB or display substrate.
  • Wire Bonding: Tiny gold or aluminum wires are used to bond the chip to the circuit, making electrical connections between the IC and the display.