公开(公告)号：JPH09198719A

公开(公告)日：1997-07-31

申请号：JP2600596

申请日：1996-01-19

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA ,  OWA HIDEO

IPC: G11B23/50 ,  G11B7/24 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To decrease the amt. of defective articles and to obtain a recording medium having high reliability by packing a water-soluble material into the second pits of the recording medium. SOLUTION: The many pits 2 transferred by the projecting parts of a stamper are formed on the recording surface of a substrate 1. Only the defective part 3 parts previously detected are exposed on this substrate 1. The surface exclusive of the defect pits 3 is shut off by a mask 5. The size of the holes 5a of the mask 5 is set smaller than the apertures of the pits 3. The sizes of the holes 5a are made smaller than the aperture of the pits 3. Next, the water-soluble transparent resin 6 is packed into the defect pits 3 if the water-soluble resin 6 is applied on the mask 5 over the entire part thereof from above.

公开(公告)号：JP2000047266A

公开(公告)日：2000-02-18

申请号：JP21092498

申请日：1998-07-27

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA ,  KUWABARA SOICHI ,  HASHIMOTO SHUNICHI

IPC: G02F1/167 ,  G09F9/37

Abstract: PROBLEM TO BE SOLVED: To provide an electrophoresis display device capable of displaying an information by an electric signal inputting with handwritten input and maintaining a sample on a display. SOLUTION: An electrophoresis display device E1 comprises a microcapsule 3 sealing a dispersion system of electrophoresis particles and a dispersion medium. The device has a double layer structure comprising a display portion, which makes the electrophoresis particles move by an electric field effect and displays a photo-receiving type, which has no light-emitting itself, so-called a photo- reflecting type electrophoresis display, and a magnetic layer 6 of a ferromagnetic material or a paramagnetic material set so as to line the backside of the display portion. Written input and erasure are carried out by a potential difference charged between a common electrode 4 forming an electric field and an input pen 7. Further a paper sheet 29 is held between the display portion and the carrier 28 by force generated from magnetism between the carriers 28 consisting of the ferromagnetic material or the paramagnetic material and the magnetic layer 6.

公开(公告)号：JP2000009910A

公开(公告)日：2000-01-14

申请号：JP18965198

申请日：1998-06-19

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G02B5/02 ,  G02B5/08 ,  G02F1/1335 ,  G09F9/30

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a diffusion reflection plate having high reflection efficiency and desired directivity. SOLUTION: First, a resin film having photosensitivity is formed on a substrate 2. Next, this resin film is patterned by photolithography to provide the substrate with the assemblage of discretely disposed columnar bodies 22a. In succession, the surface of the assemblage of these columnar bodies 22a is coated with a resin 22b to form the assemblage of curvilinear recessed parts in the flat spacings between the discretely disposed columnar bodies 22a. Finally, a metallic film 22c is formed on the assemblage of the recessed parts.

公开(公告)号：JPH0845058A

公开(公告)日：1996-02-16

申请号：JP19803994

申请日：1994-07-29

Applicant: SONY CORP

Inventor： ATA MASAFUMI ,  MATSUDE MASATAKA ,  NOGUCHI TSUTOMU ,  TOMITA HIDEMI

IPC: G11B5/702 ,  C09D5/23

Abstract: PURPOSE:To obtain a magnetic recording medium excellent in durability and weather resistance and excellent also in magnetic characteristics and electromag netic transducing characteristics. CONSTITUTION:When a magnetic layer is formed on a nonmagnetic substrate by coating with a magnetic coating material based on a binder and magnetic powder to obtain a magnetic recording medium, a polyisocyanate compd. having isocyanato functional groups is used as a curing agent. Electric charge on the carbon atom of each of the isocyanate functional groups is 0.31-0.38 when the molecular orbital is calculated by a semi-experiential molecular orbital method. An isocyanate trimer having an isocyanurate ring structure or an adduct of a polyisocyanate monomer to polyalcohol such as trialcohol is concretely used as the polyisocyanate compd. An electron withdrawing substituent. a hetero ring and an anisol structure may further be introduced into the compd.

公开(公告)号：JP2000066247A

公开(公告)日：2000-03-03

申请号：JP22955898

申请日：1998-08-14

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G02F1/167 ,  G09F9/37

Abstract: PROBLEM TO BE SOLVED: To provide an electrophoretic display device which is enhanced in display performance by solving the problem accompanying a sp. gr. difference from dispersion media by lowering the sp. gr. of migration particles and improving a contrast ratio. SOLUTION: This electrophoretic device 10 is constituted by inclosing the dispersion media 13 and the electrophoretic particles 14 dispersed therein into a spacing between a transparent substrate 11 and a counter substrate 12 arranged to face the same and executes display action by the electrophoretic effect of the electrophoretic particles 14 by the presence or absence of the voltage impression between the transparent substrate 11 and the counter substrate 12. The electrophoretic particles 14 consist of dielectric particles. The dispersion media 13 are formed of nematic liquid crystals contg. dichromatic dyestuffs.

公开(公告)号：JP2000056341A

公开(公告)日：2000-02-25

申请号：JP22552098

申请日：1998-08-10

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G02F1/167 ,  G09F9/37

Abstract: PROBLEM TO BE SOLVED: To provide the electrophoretic display device having improved reflectivity and contrast ratio, in which the difference between specific gravities of migration particles and a dispersion medium is reduced by lowering the specific gravity of the migration particle. SOLUTION: In the electrophoretic display device 10, a dispersion medium 13 colored by pigments and electrophoretic particles 14 dispersed in the medium 13 are enclosed in a gap between a transparent substrate 11 and an opposed substrate 12 which faces with the substrate 11. The display operation is performed by the electrophoretic action of the electrophoretic particles 14, which depends on the on-state or off-state of the voltage applied between the transparent substrate 11 and the opposed substrate 12. In this case, each electrophoretic particle 14 has a structure that a metal 14b is coated on the surface of a resin dielectric particle 14a.

公开(公告)号：JP2000056340A

公开(公告)日：2000-02-25

申请号：JP22551998

申请日：1998-08-10

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G02F1/167 ,  G09F9/37

Abstract: PROBLEM TO BE SOLVED: To provide an electrophoretic display device having improved reflectivity and contrast ratio, in which the difference between specific gravities of migration particles and a dispersion medium is reduced by lowering the specific gravity of the migration particles. SOLUTION: In the electrophoretic display device 10, a dispersion medium 13 colored by pigments and electrophoretic particles 14 dispersed in the medium 13 are enclosed in a gap between a transparent substrate 11 and an opposed substrate 12 which faces with the substrate 11. The display operation is performed by the electrophoretic action of the electrophoretic particles 14, which depends on the on-state or off-state of the voltage applied between the transparent substrate 11 and the opposed substrate 12. In this case, the electrophoretic particles 14 are composed of two kinds of resin dielectric particles having different refractive indexes.

公开(公告)号：JP2000019564A

公开(公告)日：2000-01-21

申请号：JP18674598

申请日：1998-07-02

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G02F1/137 ,  G09F9/35

Abstract: PROBLEM TO BE SOLVED: To provide a reflection type liquid crystal display device which makes the balance of color, more particularly white colorless and improves image quality. SOLUTION: This reflection type liquid crystal display device 20 includes a first substrate 4 which has a polarizing plate 2 and a phase difference plate 3 and is arranged on an incident side, a second substrate 6 which has a reflection plate, pixel electrodes 11 and switching elements 5 for driving these pixel electrodes 11 and is arranged to face the first substrate 4 via a spacing and a liquid crystal layer 21 which is disposed in this spacing. This liquid crystal layer 21 is formed by adding dichromatic dyestuffs 23 to nematic liquid crystals 22.

公开(公告)号：JP2000010085A

公开(公告)日：2000-01-14

申请号：JP18965098

申请日：1998-06-19

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G02F1/1333 ,  C09K19/38 ,  G02F1/13 ,  G02F1/1335 ,  G09F9/35

Abstract: PROBLEM TO BE SOLVED: To prevent a double reflection due to parallax in a reflective display which utilizes two polarizing plates. SOLUTION: A reflective display consists of the first substrate 1 located on an incident side and the second substrate 2 on a reflecting side. The second substrate 2 is equipped with pixel electrodes 11 and thin film transistors 13 which drive them. Liquid crystal 3 is held as an electrooptical material in a gap between the first substrate 1 and the second substrate 2 located opposing each other. The first polarizing layer 9 is interposed between the first substrate 1 and the liquid crystal 3. The second polarizing layer 4 is located on a rear side of the second substrate 2. The first polarizing layer 9 is composed of liquid crystal polymer uniaxially oriented in a state dispersed with a dichroic dye. The second polarizing layer 4 contains a reflective polarizer composed of a multilayered optical film 4a, and a light absorbing film 4c.

公开(公告)号：JP2000298441A

公开(公告)日：2000-10-24

申请号：JP10531499

申请日：1999-04-13

Applicant: SONY CORP

Inventor： MATSUDE MASATAKA

IPC: G09F9/37 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a display device of a transmission type capable of achieving higher luminance by not requiring polarizing plates and alignment layers and obtaining a sufficient contrast. SOLUTION: This display device 1 of a transmission type has a display panel 2 arranged with a first transparent substrate 4 and a second transparent substrate 5 opposite to each other via a prescribed spacing and a back light 3. The display panel 2 is provided with a light condensing means 16 for condensing the light from the back light 3 by a difference in refractive indices. An optical modulating means 12 for controlling the transmission and scattering of light by an electric field and a light absorbing means 8 for absorbing the light condensed by the light condensing means 16 are disposed between the first transparent substrate 4 and second transparent substrate 5 of the display panel 2.