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Flexible ultra-thin electrophoresis display screen and method for making same

A display screen and electrophoresis technology, applied in nonlinear optics, static indicators, instruments, etc., can solve problems such as difficulty in completion, complex manufacturing process and process, impact on yield, performance cost reduction, etc., to achieve improved bendability, The effect of thickness reduction and simple process

Active Publication Date: 2007-11-21
GUANGZHOU OED TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In this preparation method, at the later stage of the production process, the upper display layer must be sealed with a sealing material around the edges. Due to the softness of the plastic base material, it will be very difficult to complete this process.
[0011] In addition, since an additional protective layer needs to be added on the upper and lower sides of the display layer, the thickness of the display screen will be greatly increased, and the additional protective layer and edge packaging material will significantly reduce the bendability of the display screen.
[0012] To sum up, the existing flexible electrophoretic display manufacturing process and process are complicated, which directly affect the yield, performance improvement and cost reduction.

Method used

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  • Flexible ultra-thin electrophoresis display screen and method for making same
  • Flexible ultra-thin electrophoresis display screen and method for making same
  • Flexible ultra-thin electrophoresis display screen and method for making same

Examples

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preparation example Construction

[0050] The preparation method of the plastic-based electrophoretic display screen of the embodiment of the present invention is shown in Figure 3, including the following steps:

[0051] During the continuous production of the upper display layer in rolls, the display material is coated in blocks and continuous sheets on the transparent conductive film substrate with a barrier layer to form a display material layer, step 100;

[0052] Continuously coating a layer of nanocomposite adhesive layer on the display material layer to form an upper display layer, step 110;

[0053] Cutting a block-shaped upper layer display layer along the seam of the transparent conductive film substrate with a barrier layer between the material display layers, step 120;

[0054] Using a stainless steel film or a plastic film with a barrier layer as a substrate, using polymer thick film technology to make a dielectric layer and a conductive layer of the circuit to form a lower layer control circuit, ...

no. 2 example

[0069] The preparation method of the plastic-based electrophoretic display screen in this embodiment is basically the same as that of the first embodiment, except for the preparation method of the adhesive material and the structure of the lower control circuit.

[0070] The adhesive layer nanocomposite used in this example is prepared by in-situ synthesis (in-situpolymerization). The adhesive layer in Example 1 directly utilizes pre-synthesized polymers. Starting from monomers, nano-inorganic substances are added during the synthesis of polymer materials. In the adhesive layer prepared in this way, the nano-inorganic substances are more evenly distributed in the polymer substrate, so that the barrier performance of the adhesive layer to water and oxygen can be improved more. A variety of polymer synthesis methods can be used here, such as stepwise addition polymerization, free radical polymerization and ion polymerization. Polymers that can be made into adhesives include pol...

no. 3 example

[0076] The preparation method of the plastic-based electrophoretic display screen in this embodiment is shown in Figure 13, including the following steps:

[0077] During the continuous production of the upper display layer in rolls, the display material is obliquely coated on a transparent conductive film substrate with a barrier layer to form a block display material layer, step 200;

[0078] Continuously coating a layer of nanocomposite adhesive layer on the display material layer to form an upper display layer, step 210;

[0079] Cutting the block-shaped upper layer display layer along the seam of the transparent conductive film substrate with a barrier layer between the material display layers, step 220;

[0080] Using a stainless steel film or a plastic film with a barrier layer as a substrate, using vacuum deposition technology to make a dielectric layer and a conductive layer of the circuit to form a lower layer control circuit, step 230;

[0081] Combining the upper ...

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Abstract

This invention provides a flexible thin electrophoresis display screen, which comprises the upper display layer and the down control layer, wherein the said upper layer comprises isolation layer transparent film base plate, display material layer and sticking layer covering the whole display material layer. The said upper layer and down layer control circuit are connected through the sticking layer of the upper displayer layer.

Description

technical field [0001] The invention relates to the structure, material composition and preparation method of a flexible ultra-thin electrophoretic display screen. Background technique [0002] In the field of research and development of display screens, plastic-based display screens have always been a hot spot for people to develop because of their light weight, bendability, and mass production in rolls. These displays include liquid crystal displays, organic light-emitting diodes, micro-encapsulated electrophoretic displays, and more. [0003] A display device requires a display section and a driving circuit. For non-flexible displays, the display material and the circuitry behind it are fabricated on a glass substrate. Because glass has excellent waterproof (steam) and anti-gas diffusion and penetration properties, usually in the later stage of display manufacturing, the display material can be isolated from the external environment through edge packaging, so that the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/167G09G3/00
Inventor 漳立冰陈宇
Owner GUANGZHOU OED TECH INC
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