Flexible light guide plate and manufacturing method thereof

Abstract

The invention provides a flexible light guide plate and a manufacturing method thereof. When the flexible light guide plate is powered on, the light transmittance of the light guide plate is under control. Therefore, the light guide plate is transparent or non-transparent. Te light guide plate is mainly composed of Polymer Dispersed Liquid Crystal (PDLC) and a two-layer transparent conductive layer. The transparent conductive layer is mainly made of poly-3, 4-ethylenedioxythiophene, nano-silicon and other material on the basis of an appropriate weight percentage of ingredients after being formulated. After being assembled together, the on / off state of the light guide plate is controlled by a power supply. The light guide plate can be used as an electronic curtain, a projection curtain or the like.

Description

technical field [0001] A flexible light guide plate and its manufacturing method. The invention particularly refers to a flexible light guide plate and its manufacturing method that control the passing or shielding of light by operating the conduction of a power supply. Background technique [0002] Global warming has become the most important environmental protection issue at present. In order to adapt to energy saving and carbon reduction, smart glass will become an indispensable building material. Therefore, the implementation of polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal; PDLC) smart green materials in life will There is no need to delay; such as China Taiwan Patent Publication No. 200809307 "Manufacturing Method and Structure of Display Panel", discloses a display panel, which includes a first substrate and a second substrate, the surface of the first substrate is provided with an electrode layer, the electrode layer It has a pixel electrode (ITO...

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Problems solved by technology

[0002] Global warming has become the most important environmental protection issue at present. In order to adapt to energy saving and carbon reduction, smart glass will become an indispensable building material. Therefore, the implementation of polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal; PDLC) smart green materials in life will There is no need to delay; such as China Taiwan Patent Publication No. 200809307 "Manufacturing Method and Structure of Display Panel", discloses a display panel, which includes a first substrate and a second substrate, the surface of the first substrate is provided with an electrode layer, the electrode layer It has a pixel electrode (ITO, PEDOT / PSS), and several partition wall structures are arranged on its surface to form a plurality of microcup structures. These microcup structures are filled with display media (such as liquid crystals), and the top surface is covered with a protective material, the second substrate is covered on the top surface of the protective material and the microcup structure, so that the electrode layer, the partition wall structure, the microcup structure and the protective material are jointly pressed into one body by means of the clamping of the first substrate and the second substrate; In this way, the protective material in contact with the display medium will dissolve in the display medium, and as the dissolution ratio of the protective material changes, the display medium will also be modified into different types of liquid crystals, such as polymer dispersed liquid crystal (PDLC), and In this case, different types of liquid crystals are produced by utilizing the dissolution ratio of the protective material to the display medium. Therefore, the electrode layer must be placed on the surface of the substrate to obtain support from the substrate. Therefore, its thickness is relatively high, resulting in poor flexibility and toughness; Please refer to China Taiwan Patent Publication No. 201117160 "Conductive Film or Electrode with Improved Optical and Electrical Properties for Displays, Lighting Devices, and Solar Cells", which discloses a conductive film that is attached to the surface of a display and includes an intermediate conductive layer and two adjacent conductive layers, the intermediate conductive layer is sandwiched between the two adjacent conductive layers, and is used to electrically connect the two adjacent conductive layers, the two adjacent conductive layers can be TCO or ITO, and the intermediate conductive layer The layer can be formed by conductive polymer (PEDOT / PSS) after solution coating or electrodeposition. In this way, the interface reflection between the conductive layers can be reduced. In this case, the two adjacent conductive layers are formed of ITO material. Its main function is to reduce the interface reflection, and the adjacent conductive layer must be arranged on the surface of the display to obtain the support of the display, so its flexibility and toughness are not good; please refer to China Taiwan Patent Publication No. 200728816 "Manufacturing method of display panel and its Protective Layer Material", discloses a method of manufacturing a display panel, which firstly provides a substrate on which a conductive layer (ITO, IZO, PEDOT / PSS) and a partition wall structure are formed, and the microcup structure is filled with display Medium (such as liquid crystal), its top surface is coated with a protective material sheath, wherein the protective layer includes a first material and a second material, the second material in contact with the display medium will dissolve in the display medium, by means of the second The proportion of material dissolved in the display medium changes, and the display medium will also be modified into different types of liquid crystals, such as polymer dispersed liquid crystal (PDLC). This case has a transparent conductive film, but it mainly uses the second material to display The dissolution ratio of the medium produces different types of liquid crystals, so its electrode layer must be arranged on the surface of the substrate to obtain substrate support, so its thickness is relatively high, making the flexibility and toughness poor; A Color PDLC Display Device", discloses a color PDLC display device for providing color or transparent display, which consists of two layers of transparent substrates, two layers of transparent pixel electrodes, two layers of color PDLC layers and a public transparent The electrodes are staggered and stacked, and the transparent pixel electrodes and the common transparent electrodes are made of ITO. In this way, the effect of displaying color or transparency can be achieved, thereby solving the technical problem that PDLC display devices are difficult to achieve color display, and thus applied to PDLC In the fields of glass, dimming glass, and color display of windows, the transparent pixel electrodes and public transparent electrodes in this case are made of ITO, which has poor flexibility and toughness and must be supported by a transparent substrate.

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