Printed flexible display screen based on double-layer polymer dispersed liquid crystal (PDLC) film

Abstract

The invention discloses a printed flexible display screen based on a double-layer polymer dispersed liquid crystal (PDLC) film. The display screen at least comprises a printing layer, a printing ink layer, a photic layer, an electrode layer A, an electronically-controlled optical switch layer, an electrode layer B, an electronically-controlled optical switch layer and an electrode layer C, wherein the printing layer is made of a foldable and printable flexible insulating material; the printing ink layer is a cyan, magenta, yellow and black (CMYK) colored ink lattice; the photic layer is made of a flexible photic material; the electronically-controlled optical switch layer is the PDLC film; the electrode layer A, the electrode layer B and the electrode layer C are indium tin oxide (ITO) conductive films on which electrode matrixes are engraved; and an electrode matrix direction of the electrode layer A is the same as the electrode layer C and is vertical to an electrode matrix direction of the electrode layer B. The display screen has a high contrast ratio, short response time, low driving voltage, low production cost and a simple manufacturing process, makes reading comfortable and is suitable for large-scale mass production.

Description

technical field [0001] The invention relates to a printed flexible display screen based on a double-layer PDLC film, which belongs to the field of ink printing and also belongs to the field of electronics. Background technique [0002] The current display technology can be divided into two categories: one is paper display, its main features are: display content by reflecting ambient light, easy to display in color, large viewing angle (close to 180°), and soft medium. The other type is CRT, LCD, LED and other electronic displays. Its main features are: information can be refreshed quickly, relying on the internal light of the display itself to display the content, it needs to consume more power when working, it is easy to make people tired when reading, and the medium is not soft . [0003] In the past ten years, people are working hard to develop paper-like reflective flexible displays (commonly known as electronic paper), trying to overcome the shortcomings of the aforeme...

AI Technical Summary

Problems solved by technology

[0005] At present, although some progress has been made in the flexible display screen based on electrophoresis, there are still a series of problems that need to be solved, such as slow response speed (hundreds of milliseconds), difficulty in realizing color (using different filters to achieve color), and high production cost.

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