Method for preparing flexible display module based on PDLC

A flexible display and flexible substrate technology, applied in nonlinear optics, optics, instruments, etc., can solve the problems of restricting the development and lack of printed flexible displays, reduce production costs, improve qualification rates, and achieve mass production Effect

Inactive Publication Date: 2013-04-10
BEIJING SAN WU JIU INVESTMENT
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AI Technical Summary

Problems solved by technology

The key to the realization of PDLC-based printed flexible displays lies in the preparation of flexible display modules. However, the current research reports on the preparation process of flexible display modules related to this type of display are very scarce, which limits the development of PDLC-based printed flexible displays.

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  • Method for preparing flexible display module based on PDLC

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the following embodiments are not intended to limit the present invention.

[0022] In this example, refer to figure 1 , a method for preparing a flexible display module based on PDLC, comprising the following steps:

[0023] (1) Select silicon or glass wafers with high flatness and single-sided polishing as the hard substrate 1. The surface roughness of the hard substrate 1 is less than 5 μm, and the hard substrate is cleaned with deionized water, and then baked After drying, coat an adhesive layer 2 on the surface of the hard substrate 1 . First, prepare the hard substrate 1 and the adhesive layer 2. The hard substrate 1 is a single-polished silicon wafer. The hard substrate is ultrasonically cleaned with acetone, ethanol and deionized water, and baked in a vacuum furnace at 180°C. Dry for 3 hours, and then coat...

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Abstract

The invention provides a method for preparing a flexible display module based on PDLC (Polymer Dispersed Liquid Crystal). The method comprises the following steps: selecting a single-face polished silicon wafer or glass sheet with high evenness as a rigid chip, and adopting an adhesion layer to evenly fix a flexible substrate with a transparent conducting layer on the rigid chip; etching the transparent conducting layer into an electrode array composed of mutually-parallel transparent conducting grids with a photoetching and etching process, and then adopting a coating process to coat a layer of PDLC membrane on one surface with the electrode array of the flexible substrate; and utilizing a coating machine to evenly and compactly cover a transparent flexible chip on the surface of the PDLC membrane and photocure the PDLC membrane, and then stripping the rigid chip from a device; and adopting a printing process to airbrushing a CMKY (cyan, magenta, yellow black) ink layer on the back of the flexible substrate. According to the preparation method, the processing precision of products is ensured, and the processing craft is compatible with the processing craft of micro-electronics, so that the production cost of the product is reduced.

Description

technical field [0001] The invention relates to a method for preparing a flexible display module, in particular to a method for preparing a flexible display module based on PDLC. Background technique [0002] Polymer dispersed liquid crystal (polymer dispersed liquid crystal, PDLC) is a new kind of electro-optic thin film material. It disperses small molecular liquid crystals (LC) in a transparent polymer matrix to form micro-sized or nano-sized liquid crystal droplets, and the polymer provides a stable network structure for the liquid crystal droplets. Due to the strong optical anisotropy and dielectric anisotropy of liquid crystal molecules, this material has remarkable electro-optical properties. Compared with traditional twisted or supertwisted liquid crystal devices, polymer dispersed liquid crystals have the advantages of not requiring polarizers and alignment layers, and the preparation process is simple. Therefore, it is suitable for the preparation of flexible lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334
Inventor 钱俊刘锋
Owner BEIJING SAN WU JIU INVESTMENT
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