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Particles for display media and information display panel using the particles

A display medium and information display technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of complex structure, charge injection, lack of stability, etc., and achieve excellent durability, high heat resistance, and excellent display quality Effect

Inactive Publication Date: 2007-11-14
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the structure is complicated due to the provision of the charge transport layer and the charge generation layer, and it is difficult to constantly inject charges into the conductive particles, this method also has a problem of lack of stability.

Method used

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  • Particles for display media and information display panel using the particles
  • Particles for display media and information display panel using the particles
  • Particles for display media and information display panel using the particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] As particles for black display media, 3 parts by weight of aniline black compound (BONTRON N07: produced by Orient Chemical Industries, Ltd.) as a positively charged charge control agent and 5 parts by weight of carbon black as a black colorant were made by a sand mill. (Special Black5: produced by Degussa) was dispersed in 60 parts by weight of methyl methacrylate (Kanto Chemical Chemicals) and 40 parts by weight (about 25 mol%) of ethyl as a polyfunctional monomer having a plurality of polymerizable reactive groups in one molecule. In diol dimethacrylate (Wako Pure Chemical Chemicals), make 5 parts by weight of (acrylic and methacrylic) resin-(acrylic and methacrylic with hydrocarbon or fluorinated hydrocarbon in the side chain) resin Block copolymer (MODIPER F600: produced by NOF, fluorocarbon component C 8 f 17 ) was dissolved, and then 2 parts by weight of lauryl peroxide (PEROYL L: produced by NOF) was dissolved, and the resulting solution was suspended in sodium...

Embodiment 2

[0098] Except that in Example 1, when manufacturing the particles for white display media, 50 parts by weight of cycloolefin resin (ZEONEX 330R: produced by ZEON Corporation) and 50 parts by weight of cycloolefin resin (ZEONOR 1410R: produced by ZEON Corporation) were mixed, and the above-mentioned implementation The particles W1 for white display media of Example 1 were carried out in the same manner to produce particles W2 for white display media. Table 1 shows the properties of the resin itself and the properties of the particles W2 for white display media.

Embodiment 3

[0100] Except using cycloolefin resin (ZEONEX 480R: produced by ZEON Corporation) instead of cycloolefin resin (ZEONEX 330R: produced by ZEON Corporation) in Example 1, the same procedure as the particles W1 for white display media in Example 1 above was used to produce a white display medium Use particle W3. Table 1 shows the properties of the resin itself and the properties of the particles W3 for white display media.

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Abstract

The invention provides particles for display media: which are manufactured using a thermoplastic resin which has high thermal resistance and is easily pulverized; whose Izod impact strength is less than a predetermined strength value and a load-deflection temperature is not less than a predetermined temperature; and whose thermal resistance is high and content of pigment is secured. Particles for display media constitute the display media used for an information display panel, in which the display media are sealed between two substrates 1, 2, at least one substrate being transparent, and, in which the display media to which an electrostatic field is applied, are made to move so as to display information such as an image. One of the particles is produced by crushing resin blocks and classifying them, and the Izod impact strength of the resin constituting the particles for display media (based on ASTM D256) is less than 4 (kgf * cm / cm) and the load-deflection temperature of the resin constituting the particles for display media (base on ASTM D648) exceeds 100[deg.]C. The particles for display media having high thermal resistance and secured content of pigment are obtained by using above particles.

Description

technical field [0001] The present invention relates to a particle for a display medium, which constitutes a display medium used in a panel for information display. The panel for information display seals a display medium between two substrates at least one of which is transparent. By applying an electric field to the display medium, the Display media movement and display images and other information. It also relates to an information display panel using the particle for a display medium. Background technique [0002] Conventionally, as an information display device replacing a liquid crystal (LCD), an information display device using technologies such as an electrophoretic method, an electrochromatic display method, a thermal method, and a two-color particle rotation method has been proposed. [0003] Compared with LCD, these existing technologies are considered to be technologies that can be used for next-generation inexpensive information display devices because they hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/167
Inventor 药师寺学小林米次村田和也
Owner BRIDGESTONE CORP
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