Wall Mounted Indoor Infrared

Substrate preparation: The process begins with the preparation of glass substrates. Typically, two glass plates are used: The array substrate and the color filter substrate. These substrates undergo rigorous cleaning processes to remove any impurities or contaminants that could affect the display quality.

Thin film transistor (tft) fabrication: The array substrate is coated with a transparent conductive material, usually indium tin oxide (ito). A layer of amorphous silicon (a-si) is then deposited using techniques like chemical vapor deposition (cvd).

Color filter fabrication: The color filter substrate is coated with a black matrix that defines the boundaries of each pixel. Red, green, and blue color filters are applied using photolithography, where photosensitive material is selectively exposed to light and developed to create the desired patterns.

Liquid crystal alignment: Both substrates undergo a liquid crystal alignment process. A layer of polyimide is applied and rubbed in a specific direction to align the liquid crystal molecules properly.

Liquid crystal injection and sealing: The array substrate and color filter substrate are aligned facing each other with a narrow gap between them. Liquid crystal material is injected into this gap and sealed using a sealant that prevents leakage.

Polarizer attachment: Polarizers are attached to the outer surfaces of the lcd screen to control light polarization. These polarizers are essential for ensuring that only properly oriented light passes through the liquid crystal layer.

Backlighting: For lcd requiring backlighting, a module consisting of LED or cold cathode fluorescent lamps (ccfl) is attached behind the lcd panel, providing necessary illumination.

Testing and inspection: After assembly, rigorous testing and inspection are performed to ensure quality and reliability. This includes checks for defects, uniformity, color accuracy, and functionality.