Liquid crystal screen internal capacitance touch display screen

Abstract

The invention discloses a liquid crystal screen internal capacitance touch display screen. The display screen structurally comprises a liquid crystal screen body and a touch display screen body, the touch display screen body is arranged in the middle of the liquid crystal display screen body, a monitoring camera is arranged in the middle of the top of the touch display screen body, the inner sideof the touch display screen body is provided with a tempered glass layer, the inner side of the tempered glass layer is provided with a conductive layer, the inner side of the conductive layer is provided with a capacitance screen substrate, the inner side of the capacitance screen substrate is provided with a reinforcing layer, the inner side of the reinforcing layer is provided with a diaphragmplate, the inner side of the diaphragm plate is provided with a diffusion plate, the inner side of the diffusion plate is provided with a light guiding plate, the inner side of the light guiding plateis provided with a lamp strip illumination source, and a sealing ring is bonded to the outer circumference of the capacitance screen substrate. The liquid crystal screen internal capacitance touch display screen has the advantages that the structural strength of the liquid crystal screen internal capacitance touch display screen is improved, an internal light source is diffused, so that the liquid crystal screen internal capacitance touch display screen is brighter, the sealing ring has the effect of slipping and shaking preventing, dust and light leakage resisting is achieved, and the designis reasonable.

Description

technical field [0001] The invention relates to the technical field of capacitive touch display equipment, in particular to a capacitive touch display inside a liquid crystal screen. 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 ...

AI Technical Summary

Problems solved by technology

[0003] The strength of the capacitive touch screen inside the existing LCD screen is low, and it is easy to be damaged when it is lightly dropped during use. It is unstable, has few functions, and is inconvenient to use. The internal light source is not bright enough. , it is difficult to meet the needs of the existing capacitive touch screen inside the LCD screen

Images