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The lamination of display screens and touch screens is mainly divided into three categories: Air Bonding, Optical Bonding (including OCA/LOCA), and 0-Lamination. In addition, there are built-in touch solutions such as On-Cell/In-Cell.

By utilizing the capacitive coupling effect, transparent conductive electrodes are embedded in the screen to form an induced electric field. Human fingers are conductors, and when touched, they generate equivalent capacitance with the screen electrodes, causing changes in local charge/electric field. The touch chip detects the changes and calculates the touch coordinates.

TFT-LCD, also known as thin-film transistor liquid crystal display, belongs to active matrix liquid crystal display technology. LCD itself does not emit light, relying on backlight source+LCD electro-optic modulation+TFT independent pixel control, combined with color filters to achieve high-definition color image display, widely used in industrial control, medical, automotive, outdoor special display and other fields.