Light filter electromagnetic shielding membrane extraction electrode manufacturing method

Abstract

The invention provides a light filter electromagnetic shielding membrane extraction electrode manufacturing method. An ultrasonic wave metal welding machine is adopted, a metal foil at through hole at the periphery or at gap region of polymeric membrane is utilized to be aligned with the welding head of the ultrasonic wave metal welding machine, the high frequency vibration wave of the welding head of the ultrasonic wave metal welding machine is transmitted to the metal foils on the front and back of the polymeric membrane, the metal foils on the front and back rub mutually to form fusion between superficial layers, thus completing manufacturing of light filter electromagnetic shielding membrane extraction electrode. The invention adopts the ultrasonic wave metal welding machine to weld the metal foils, welding time is short, electromagnetic shielding membrane, polymeric membrane and antireflection hardening layer are not influenced; the superficial layers of the metal foil at the through hole or gap of the polymeric membrane are fused by ultrasonic wave welding, miss fit caused by residual bubble and virtual fit caused by incompact fit are effectively eliminated, and electromagnetic shielding membrane extraction effect is improved, thus improving electromagnetic wave shielding effect.

Description

technical field [0001] The invention relates to a manufacturing method of an optical filter, in particular to a manufacturing method of a lead-out electrode of an electromagnetic shielding film layer of a plasma display (PDP) optical filter. Background technique [0002] Plasma displays generate electromagnetic waves due to plasma emission, and the discharge of inert gas neon causes unnecessary emission of neon yellow characteristic light and near-infrared rays. The electromagnetic waves emitted by the plasma display are harmful to people or objects in the surrounding environment, and the near infrared rays also affect the infrared remote control and receiving functions, and the neon yellow characteristic light causes the color purity of the plasma display to decrease. [0003] In order to overcome these disadvantages while reducing surface reflection and improving color purity, optical filters are currently installed in front of plasma displays, such as figure 1 As shown, ...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a processing and manufacturing method for improving the lamination effect of the metal foil sheet of the lead-out electrode of the electromagnetic shielding film layer of the plasma display filter, so as to avoid the occurrence of air bubbles or lax lamination resulting in missing or false bonding. posted questions

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