A large-size capacitive screen utilizing a seamless splicing structure

Abstract

The invention discloses a large-size capacitive screen utilizing a seamless splicing structure, comprising a small-sized capacitive screen composed of a glass cover plate, a capacitive touch screen, a PET base film and a display screen, and a card frame installed on the side of the small-sized capacitive screen And the bottom frame fixing plate installed on the bottom surface of the small-sized capacitive screen, the card frame is in a concave shape structure, the gap between adjacent small-sized capacitive screens in this device is evenly coated with glass glue, and the gap between the small-sized capacitive screens The connection structure between them is stable and not easy to shake, which ensures that the glass glue is not easy to dry and cracks, and ensures the seamless effect of splicing between small-sized capacitive screens. Adjacent small-sized capacitive screens are connected to the lower surface of the display screen through the bottom frame stabilizer On the mounting block of the bottom frame, the multiple positioning screws on the bottom frame stabilizer are engaged in the corresponding positioning holes on the bottom frame fixing plate, so that the bottom frame stabilizer is connected as a whole, and it is not easy to shake each other, which ensures the structural connection. Stability, and easy disassembly, transportation and production.

Description

technical field [0001] The invention relates to the technical field of capacitive screens, in particular to a large-size capacitive screen utilizing a seamless splicing structure. Background technique [0002] Capacitive touch screen technology uses the current induction of the human body to work. The capacitive touch screen is a four-layer composite glass screen. The inner surface and interlayer of the glass screen are each coated with a layer of ITO. The outermost layer is a thin layer of silica glass protective layer. The interlayer ITO coating is used as the working surface. Four electrodes, the inner ITO is the shielding layer to ensure a good working environment. When a finger touches the metal layer, due to the electric field of the human body, a coupling capacitance is formed between the user and the surface of the touch screen. For high-frequency currents, the capacitance is a direct conductor, so the finger absorbs a small current from the contact point. This cur...

AI Technical Summary

Problems solved by technology

[0003] 1. Existing capacitive screens are individually designed to be too large to be convenient for transportation and production, and there are inconveniences in installation and disassembly. Therefore, large-sized capacitive screens are often composed of multiple small-sized capacitive screens, and the connections between them are often gaps. Larger, unable to achieve the effect similar to seamless splicing, affecting the use;

[0004] 2. The existing large-size capacitive screens are easy to shake between small-sized capacitive screens during the installation and splicing process, and the installation structure is unstable and inconvenient to disassemble.

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