Large-size capacitive screen adopting seamless splicing structure

Abstract

The invention discloses a large-size capacitive screen adopting a seamless splicing structure. The large-size capacitive screen comprises small-size capacitive screens composed of glass cover plates,capacitive touch screens, PET base films and display screens, clamping frames installed on the side faces of the small-size capacitive screens and bottom frame fixing plates installed on the bottom faces of the small-size capacitive screens, wherein the clamping frames are of a concave structure. According to the device, glass cement is uniformly smeared in gaps among the adjacent small-size capacitive screens, connection structures among the small-size capacitive screens are stable and not prone to shaking, it is guaranteed that the glass cement is not prone to cracking, and a seamless effectof splicing among the small-size capacitive screens is guaranteed; and the adjacent small-size capacitive screens are connected to installation blocks on the lower surfaces of the display screens through bottom frame stabilizing supports, multiple locating screws on the bottom frame stabilizing supports are clamped into corresponding locating holes in the bottom frame fixing plates, therefore, the bottom frame stabilizing supports are connected into a whole and not prone to shaking, the stability of structure connection is guaranteed, and convenience is brought to disassembling, assembling, 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...

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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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