Abstract: Disclosed herein is a color electronic paper display device. The color electronic paper display device includes a barrier rib structure body that has a cavity partitioning rotating balls; and an electrode structure that is provided in the barrier rib structure body and applies voltage to the rotating balls, wherein the barrier rib structure body has a multilayer barrier rib structure formed of a lower barrier rib and an upper barrier rib, having different light absorptions.

Abstract: There is provided an electronic paper display device and a manufacturing method thereof. The electronic paper display device includes first and second electrodes facing each other with a predetermined gap therebetween; partitions dividing a space between the first and second electrodes into a plurality of cell spaces; first and second ridge portions formed on the first and second electrodes and allowing for a streamlined electric field in the cell spaces; and rotatable balls disposed in the respective cell spaces and having electrical and optical anisotropy. The electronic paper display device controls the linear movement of the rotatable ball through a streamlined electric field, and thus the stability of an image is achieved, and a superior contrast ratio is provided.

Abstract: The present invention provides an electronic paper display device including: a first electrode; a second electrode facing the first electrode; a barrier layer interposed between the first and second electrodes to define a plurality of cells; and a microcapsule disposed in each cell between the first and second electrodes and maintaining a ratio of minor axis to major axis of 0.9 to 1, and a manufacturing method of the same.

Abstract: There are provided a display element and electronic paper. The display element includes a structure having a cylindrical shape and including a void inside, and at least two display regions formed on a side face of the structure and colored with different colors. The use of the display element for electronic paper can improve a response rate while lowering driving voltage, and can improve a contrast ratio by increasing a packing fraction.

Abstract: There is provided an apparatus and method of resetting an electronic paper panel. An apparatus for resetting an electronic paper panel according to an aspect of the invention may include: a time control unit determining start and end times of a predetermined reset period on the basis of a frame synchronization signal and a data synchronization signal of an electronic paper panel, and determining start and end times of a predetermined pulse reset period within the reset period; and a driving circuit unit generating a pulse reset signal having pulses with a predetermined frequency during the pulse reset period, determined by the time control unit, and generating a display reset signal during the reset period to thereby supply the pulse reset signal and the display reset signal to the electronic paper panel.

Abstract: There are provided a method of manufacturing an electronic paper display device and an electronic paper display device manufactured by the method, and the method of manufacturing an electronic display device includes: providing a substrate having a plurality of walls and a plurality of cells defined by the walls; disposing at least one kind of rotators in the cells; disposing a display-sided electrode on the substrate to cover the rotators; and disposing a back electrode, opposite to the display-sided electrode, on the substrate, in which the rotators are arranged in the cells by a jig having a cylindrical center body, retaining grooves that are formed around the center body and retain the rotator, protrusions that are formed between adjacent retaining grooves, and a guide that is formed around the protrusions and has inlets and an outlet for the rotators.

Abstract: The present invention provides a color electronic paper display device, which includes: a base; a first colorant disposed on the base; a second colorant disposed on the base, the second colorant having lower reflectance and size lower than those of the first colorant; and an electrode part for applying voltages to the first and second colorants.

Abstract: There is provided an electronic paper display device, and a method of manufacturing the same. The electronic paper display device includes a display side electrode formed of a transparent material, a rear electrode opposing the display side electrode, a substrate disposed between the display side electrode and the rear electrode, and including a plurality of partition walls separating a space between the display side electrode and the rear electrode and a plurality of cell spaces formed by the plurality of partition walls, and two or more types of rotary bodies disposed in the plurality of cell spaces and displaying different respective colors. The same type of rotary bodies displaying the same color among the rotary bodies includes a plurality of rotary bodies having different respective shades. The electronic paper display device has high image stability and uniformity and enables the expression of various shades.

Abstract: A method for fabricating a thin film device includes the step of forming a sacrificial layer on a first substrate. A portion other than a region of the sacrificial layer is selectively removed. A material film is formed on the sacrificial layer to be connected to the first substrate via the selectively removed region. The material film portion filled in the selectively removed region is provided as an anchor. A thin film lamination is formed on the material film. The desired thin film device is formed by using a selective etching process. After removing the sacrificial layer, the thin film device floats over the first substrate with being supported by the anchor. A support body is temporarily attached on the thin film lamination. The thin film device is transferred to the support body onto a second substrate.

Abstract: There is provided a method of manufacturing a sheet type electronic paper display device. The method includes: forming a preliminary substrate including a plurality of raised patterns having a greater width than a diameter of first rotary bodies, and a plurality of cell spaces formed between the raised patterns; disposing second rotary bodies in the plurality of cell spaces; injecting a first elastomer matrix into the cell spaces to cover the second rotary bodies; separating the first elastomer matrix from the preliminary substrate to thereby obtain a semi-sheet type structure including depressed patterns corresponding to the raised patterns, protrusions corresponding to the cell spaces and formed of the first elastomer matrix, and the second rotary bodies located within the protrusions; disposing the first rotary bodies in the depressed patterns; and injecting a second elastomer matrix into the depressed patterns to cover the first rotary bodies.

Abstract: There is provided an electronic paper display device and a method of manufacturing the same. An electronic paper display device according to an aspect of the invention may include: first and second electrodes facing each other; an elastomer matrix provided between the first and second electrodes and having one or more protrusions spaced apart at predetermined intervals therebetween; and one or more rotary bodies having optical and electrical anisotropy and being disposed within each of the protrusions. An electronic paper display device according to an aspect of the invention includes rotary bodies being densely arranged with a small thickness, thereby improving a contrast ratio and requiring relatively low driving voltage. Furthermore, predetermined intervals within an elastomer matrix provide a space in which the elastomer matrix can be bent, thereby increasing flexibility.

Abstract: The present invention provides an electronic paper display device including: a first electrode; a second electrode facing the first electrode; a barrier layer interposed between the first and second electrodes to define a plurality of cells; and a microcapsule disposed in each cell between the first and second electrodes and maintaining a ratio of minor axis to major axis of 0.9 to 1, and a manufacturing method of the same.

Abstract: An electronic paper display device includes: a display-side electrode disposed at a display side and formed of a transparent material; a back electrode disposed to face the display-side electrode; a substrate provided as a single layer disposed between the display-side electrode and the back electrode and including a plurality of first and second micro cups which are arranged in a two-dimensionally close-packed manner such that one micro cup is surrounded by different adjacent micro cups; and a plurality of first and second optical anisotropic elements disposed in the first and second micro cups, respectively, and having an optical characteristic changing in response to an electromagnetic change and a different driving voltage to change the optical characteristic.

Abstract: The present invention relates to an electronic paper display device and the electronic paper display device includes: a lower substrate in which an extruded pattern partitioning a cell is provided on one surface thereof; one or more display units that are disposed to have different sizes in the cell; and an upper substrate that is laminated on the top of the extruded pattern while covering the display unit, wherein the brightness is adjusted by differences in the size, specific gravity, and the quantity of charges of the display unit.

Abstract: There is provided an electronic paper display device and a manufacturing method thereof. The electronic paper display device includes a first substrate formed of a light transmitting material; a second substrate disposed to face the first substrate having a predetermined gap therebetween; at least one or more rotatable balls disposed between the first and second substrates and having electrical and optical anisotropy; and partitions dividing a space between the first and second substrates into a plurality of cell spaces accommodating the rotatable balls. The partitions are disposed to be spaced apart from each other with differing gaps therebetween in order to allow the cell spaces to have different sizes. When the same magnitude of voltage is applied to the rotatable balls disposed in the differently sized cell spaces, respective rotation angles of the rotatable balls become different, and accordingly a wide range of contrast levels is displayed.

Abstract: There is provided an electronic paper display device and a manufacturing method thereof. The electronic paper display device includes a first electrode formed of a transparent material; at least one or more second electrodes disposed to face the first electrode with differing gaps therebetween; and at least one or more display units disposed between the first and second electrodes and having optical properties varied according to voltage applied to the first and second electrodes. The display units are disposed between the first electrode and the second electrodes disposed to face the first electrode with differing gaps, so respective rotation amounts or rotation angles of the display units become different when the same magnitude of voltage is applied. Accordingly, a wide range of contrast levels is displayed.

Abstract: Provided is a sacrifice layer formed on a first substrate. A thin film laminated body is formed on the sacrifice layer. A separation groove exposing the sacrifice layer is formed to divide the thin film laminated body into at least one thin film device. The sacrifice layer is partially removed using a dry etching process. After the partial removal of the sacrifice layer, a remaining sacrifice layer region maintains the thin film device on the first substrate. A supporting structure is temporarily joined to the thin film device. The thin film device joined to the supporting structure is separated from the first substrate. Then, the remaining sacrifice layer is removed. The thin film device joined to the supporting structure is joined to a second substrate. Finally, the supporting structure is separated from the thin film device.

Abstract: An electronic paper display device and a manufacturing method thereof, where the electronic paper display device may include a first electrode; a dielectric layer that is disposed on the first electrode and has a plurality of cells defined by a barrier rib in a round shape; a second electrode that faces the dielectric layer; and electronic balls that are disposed in the inside of the respective cells to display an image according to the electric fields applied to the first and second electrodes.

Abstract: There is provided an electronic paper display device and a method of manufacturing the same. The electronic paper display device includes first and second electrodes opposing each other, a plurality of rotary bodies disposed between the first and second electrodes and having electrical and optical anisotropy, elastomer matrix blocks each surrounding at least one of the plurality of rotary bodies and spaced apart from each other, and an optical adhesive formed between the elastomer matrix blocks. The electronic paper display device achieves a high contrast ratio and a relative low driving voltage. Also, the use of the optical adhesive facilitates the adhesion of the first and second electrodes, and blocks the vaporization of dielectric liquid filing a cavity, thereby ensuring high reliability.

Abstract: The present invention relates to a manufacturing method of an electronic paper display device and an electronic paper display device manufactured therefrom. The manufacturing method of the electronic paper display device may include forming a first auxiliary first dielectric layer on a first substrate; disposing electronic balls on the first auxiliary first dielectric layer; forming a second auxiliary first dielectric layer that fixes the electronic balls by curing the first auxiliary first dielectric layer; forming an auxiliary second dielectric layer on the second auxiliary first dielectric layer including the electronic balls; forming first and second dielectric layers by curing the second auxiliary first dielectric layer and the auxiliary second dielectric layer; and bonding the first substrate including the second dielectric layer to a second substrate.