Capacitive touch screen of post double-layer single-sided metal electrode array

Abstract

The invention discloses a capacitive touch screen of a post double-layer single-sided metal electrode array. The capacitive touch screen of the post double-layer single-sided metal electrode array comprises a display screen, and a conducting film is attached to the back of the display screen; the conducting film comprises two transparent substrates, one of the transparent substrates is provided with a horizontal metal electrode array and the other transparent substrate is provided with a longitudinal metal electrode array; the horizontal metal electrode array is composed of a plurality of parallel and linear horizontal metal conductive strips, and the longitudinal metal electrode array is composed of a plurality of parallel and linear longitudinal metal conductive strips; the horizontal metal conductive strips and the longitudinal metal conductive strips are molded by etching or molded by printing; the lead ends of the horizontal metal conductive strips and the lead ends of the longitudinal metal conductive strips are in parallel connection in groups and then are connected to a signal processor. According to the capacitive touch screen of the post double-layer single-sided metal electrode array provided by the invention, the above structure is adopted, and the conducting film is arranged at the back of the display screen, so that the light transmittance can be improved and the light loss can be reduced; besides, the phenomenon that a user sees a moire pattern and a grid on the conducting film does not exist, thus the visual effect is greatly improved.

Description

technical field [0001] The invention relates to a rear-mounted double-layer single-sided metal electrode array capacitive touch screen. Background technique [0002] According to different working principles and transmission media, touch screens can be divided into resistive, capacitive, ultrasonic, electromagnetic induction and infrared. Among them, the capacitive touch screen is widely used because of its high accuracy and easy realization of multi-touch. [0003] The capacitive touch screen includes a display screen and a thin film conductor layer. The thin film conductor layer has sensitivity problems. Therefore, in the prior art, the thin film conductor layer is arranged in front of the display screen, so as to achieve the touch function. However, setting the thin film conductor layer in front of the display screen will inevitably bring the following disadvantages: 1. Since the thin film conductor layer is generally composed of two transparent substrates etched with ho...

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Problems solved by technology

However, setting the thin film conductor layer in front of the display screen will inevitably bring the following disadvantages: 1. Since the thin film conductor layer is generally composed of two transparent substrates etched with horizontal electrodes and vertical electrodes respectively, the two transparent substrates If the material is placed in front of the display screen, it will cause light loss; 2. There is a phenomenon of moiré; 3. Two transparent substrates are bonded together by optical glue, which will cause optical deformation and affect the visual effect; 4. Users watch at close range When using the display screen, the grid on the thin film conductor layer can be seen, which affects the visual effect; 5. Since there are electrode lead lines around the transparent substrate, it needs to be covered with a frame

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