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Display element, image display device, and image display system

A technology of image display device and display element, which is applied in nonlinear optics, instruments, optics, etc., and can solve the problems of high driving voltage and low reflectivity.

Inactive Publication Date: 2009-09-30
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thicker the polymer sealing film, the less reflective it is, resulting in the need for higher drive voltages

Method used

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  • Display element, image display device, and image display system
  • Display element, image display device, and image display system
  • Display element, image display device, and image display system

Examples

Experimental program
Comparison scheme
Effect test

manufacture Embodiment 1

[0079] use Figures 7A-7D A hollow structure 53 is manufactured by the method for manufacturing a hollow structure. First, as a plastic material, a polyurethane aqueous solution Hydran WLS-201 (Dainippon Ink and Chemicals, Inc.) was coated onto the substrate 51 using a slit coater to form the plastic film 52 . Then, the substrate 51 with the plastic film 52 formed thereon is placed in a vacuum chamber, and the pressure in the vacuum chamber is reduced to expand the air in the cavities. The residual moisture in the polyurethane is evaporated in vacuum so that the plastic film 52 is completely dried and cured. When the degree of vacuum of the negative pressure is set to 1 kPa or lower, an opening is formed in the top 53 a of the hollow structure 53 .

[0080] Like this, obtained such hollow structure 53, wherein the thickness of chamber wall is 1-10 μ m; The thickness of upper and lower wall is 1-10 μ m; The radius is 5-50 μm.

manufacture Embodiment 2

[0082] use Figures 7A-7D A hollow structure 53 is manufactured by the method for manufacturing a hollow structure. First, as a plastic material, an aqueous solution containing 5 to 30 wt% of gelatin MC-243 (Jellice Co., Ltd.) was coated on the substrate 51 using a slit coater to form the plastic film 52 . Then, the substrate 51 with the plastic film 52 formed thereon is placed in a vacuum chamber, and the pressure in the vacuum chamber is reduced to expand the air in the cavities. The residual moisture in the gelatin is evaporated in vacuo so that the plastic film 52 is completely dried and cured. The formation of openings in the top 53a of the hollow structure 53 depends on the gelatin concentration and the degree of vacuum of the negative pressure. If the gelatin concentration is low, openings are formed even at low vacuum levels of the negative pressure. If the gelatin concentration is higher, openings are formed at higher vacuum levels under negative pressure.

[0083...

manufacture Embodiment 3

[0085] use Figures 7A-7D A hollow structure 53 is manufactured by the method for manufacturing a hollow structure. First, as a plastic material, an aqueous solution containing 5 to 30 wt% POVAL (polyvinyl alcohol) PVA117 (KURARAY Co., Ltd.) was coated on the substrate 51 using a slit coater to form the plastic film 52 . Then, the substrate 51 with the plastic film 52 formed thereon is placed in a vacuum chamber, and the pressure in the vacuum chamber is reduced to expand the air in the cavities. The residual moisture in the polyvinyl alcohol is evaporated in vacuum so that the plastic film 52 is completely dried and cured. The opening in the top 53a of the hollow structure 53 is formed depending on the concentration of polyvinyl alcohol and the degree of vacuum of the negative pressure. If the polyvinyl alcohol concentration is low, openings are formed even when the degree of vacuum of the negative pressure is low. If the polyvinyl alcohol concentration is high, openings a...

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Abstract

The present invention relates to an electrophoresis display. A display element includes a hollow structure (20). The hollow structure (20) includes plural cells (21) disposed in a plane, each having an opening (24) in a first wall (23) of the hollow structure (20), and a partition wall (22) separating the adjacent cells. A solvent having one or more types of white particles and / or colored particles dispersed therein is disposed in the cells (21). The openings (24) are sealed with a resin insoluble in the solvent. A thickness of the partition wall (22) separating the adjacent cells is 0.01[mu]m or greater but not greater than l0[mu]m. The present invention is directed to provide a diplay element having high reflectance.

Description

technical field [0001] The present invention relates to a display element, an image display device, and an image display system. Background technique [0002] Electrophoretic displays are non-emissive devices based on the phenomenon of electrophoresis of charged pigment particles suspended in a solvent. An electrophoretic display generally comprises two plates separated by using a spacer and having electrodes arranged opposite each other. One of the electrodes is usually transparent. The suspension is enclosed between two plates. When a voltage difference is applied between the two electrodes, the pigment particles migrate to one side so that the color of the pigment or the color of the solvent can be seen depending on the polarity of the voltage difference. [0003] PCT International Publication No. WO / 2001 / 067170 discloses an electrophoretic display comprising a plurality of cup-shaped recesses (cells) formed by micro-embossing or image-wise exposure. These cells are f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/167
Inventor 金松俊宏大垣杰青木慎司大岛久庆妹尾晋哉升泽正弘
Owner RICOH KK