Flexible electronic paper display device and manufacturing method thereof

Abstract

The invention provides a flexible electronic paper display device and a manufacturing method thereof. The flexible electronic paper display device comprises a transparent protective film layer, an electronic paper layer, a substrate, an aluminum foil layer and a PCBA (printed circuit board assembly), wherein the transparent protective film layer, the electronic paper layer, the substrate and the aluminum foil layer are arranged sequentially from top to bottom; the substrate is an FPC (flexible printed circuit) substrate, and pixel electrodes are plated on the upper surface of the FPC substrate and in one-to-one correspondence with electrodes of the electronic paper layer; and a conductive silver paste layer is arranged between the pixel electrodes and the electrodes of the electronic paper layer, and used for connecting the electronic paper electrodes so as to enable the pixel electrodes to be connected with the electronic paper electrodes. According to the flexible electronic paper display device and the manufacturing method thereof, an electronic paper thin film is attached to an ITO (indium tin oxide) / FPC substrate and a silver paste medium is adopted to achieve free transmission of electrical signals between the thin film and the substrate; and the flexible ITO / FPC substrate is then connected with the PCBA. The processing technique of the flexible display device is simple, the preparation is convenient, the yield is very high, and the product can be widely applied to various occasions such as electronic watches, meeting record boards, power supply displays and the like.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a flexible electronic paper display device and a manufacturing method thereof. Background technique [0002] In recent years, flexible display technology has developed very rapidly, and various advanced manufacturing processes and technologies have been continuously improved, which has not only increased the screen size of flexible displays, but also continuously improved the display quality. Flexible displays, also known as rollable displays, are display devices that can be bent and deformed arbitrarily made of visible panels made of flexible materials, including electronic paper, flexible liquid crystal displays, and flexible organic electroluminescent display devices. Compared with ordinary rigid displays, flexible displays have many advantages: light weight, small size, thin, easy to carry; high and low temperature resistance, impact resistance, shock resistance, and can ada...

AI Technical Summary

Problems solved by technology

However, most electronic paper display devices on the market now connect electronic paper to rigid substrates such as glass and PCB substrates. The connection to flexible substrates has not been widely used due to the difficulty of production, high cost and low yield.

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