LED display screen formed by transparent film and manufacturing method thereof

Abstract

The invention discloses an LED display screen formed by a transparent film and a manufacturing method thereof. The display screen comprises a flexible transparent film, a conductive film circuit, LEDchips, a flexible circuit board and a driving strip. The flexible transparent film is an insulating non-conductive film, the conductive film circuit is plated on the flexible transparent film by coating, and the LED chips are attached to the flexible transparent film according to a predetermined arrangement and are connected to the conductive film circuit. The LED flexible display screen of the invention adopts the flexible transparent film and is light and thin, retractable and freely designed, and the human needs can be satisfied to a certain extent. According to the LED flexible display screen of the invention, laser is used to etch a circuit, the line width is controlled well to ensure the uniform impedance, so the brightness of each LED chip is the same, the brightness of display information content is uniform, and a multi-layer effect can be achieved by the cross wiring of the circuit.

Description

technical field [0001] The invention relates to LED display technology, in particular to an LED display composed of a transparent film and a manufacturing method thereof. Background technique [0002] Most of today's LED displays use hard materials such as glass and acrylic boards as base materials to display information content, but because they use non-flexible materials, they cannot meet the needs of thinness, rollability, and freedom of design. Moreover, the entire manufacturing process of LED smart glass is more complicated; there are also some large-scale LED flexible displays used in public places. The base material is mainly composed of PI material, glue, and copper. The PI material is "polyimide" insulating resin material, and its production cost is more than twice the price of PET "polyester" insulating resin material. Copper is the circuit The main material of wiring, glue bonds copper with PI or PET, that is, glues the application circuit with PI or PET, and att...

AI Technical Summary

Problems solved by technology

[0002] Most of today's LED displays use hard materials such as glass and acrylic boards as base materials to display information content, but because they use non-flexible materials, they cannot meet the needs of thinness, rollability, and freedom of design. Moreover, the entire manufacturing process of LED smart glass is more complicated; there are also some large-scale LED flexible displays used in public places. The base material is mainly composed of PI material, glue, and copper. The PI material is "polyimide" insulating resin material, and its production cost is more than twice the price of PET "polyester" insulating resin material. Copper is the circuit The main material of wiring, glue bonds copper with PI or PET, that is, glues the application circuit with PI or PET, and attaches a protective film outside for protection and insulation

This LED flexible display is based on the FPC flexible circuit board, which is opaque. The required PI material costs are relatively high, and the copper wiring used cannot perform cross-layer wiring and better control the line width to meet impedance consistency. To ensure that the brightness of each LED chip is the same, and to achieve the effect of uniform brightness of the displayed information content, due to the limitations of its use occasions, the LED flexible display also needs to be equipped with fixing clips, wire slots, iron wires, iron nets, etc. , the installation is more troublesome

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