公开(公告)号：DE69528334D1

公开(公告)日：2002-10-31

申请号：DE69528334

申请日：1995-11-10

Applicant: SONY CORP

Inventor： OHOSHI TOSHIO ,  YAMAMOTO MASANOBU ,  KIYOMIYA TADASHI

IPC: G09G3/22 ,  H01J29/02 ,  H01J29/86 ,  H01J31/12 ,  H01J29/82 ,  H01J9/18

Abstract: A light emitting device comprises: a first substrate (24) provided with luminescent materials; a second substrate (26) and spacers (10) for holding said first and second substrates opposite to each other at a predetermined space therebetween; wherein said spacers (10) are respectively formed on non-emission portions without said luminescent materials and each comprises a base layer (8) and a spacer body (9) formed thereon.

公开(公告)号：DE69021523D1

公开(公告)日：1995-09-14

申请号：DE69021523

申请日：1990-12-20

Applicant: SONY CORP

Inventor： OHOSHI TOSHIO ,  NAKAYAMA AKIRA ,  INOUE JUNICHI ,  YAMAGUCHI MASARU

IPC: H01J31/12

Abstract: A planar display apparatus with a fluorescent screen (2) formed on the inner surface of a front panel (1F) in a planar tube body (1). An electron gun (10) is disposed at a position deviated in a vertical scanning direction from an opposite portion to the fluorescent screen (2), and a vertical deflecting electrode (3) composed of a plurality of parallel electrodes (3a) is disposed in a portion opposite to the fluorescent screen (2) on the side of a back panel (1B) opposed to the front panel (1F) of the planar tube body (1). In a space between the vertical deflecting electrode (3) and the fluorescent screen (2), an electrode structure (7) is provided having at least an electron lens scanning electrode (23) composed of a plurality of parallel electrodes (23a), a splitting electrode (4) for splitting an electron beam from the electron gun (10) into a plurality of beams, a modulating electrode (5), and a horizontal deflecting electrode (6). High-resistance support walls (8) are interposed between the electrode structure (7) and the back panel (1B) for pressing the electrode structure (7) toward the front panel (1F) to thereby retain the space between the front and back panel. The support walls (8) are so formed that plate surfaces thereof extend in the vertical scanning direction orthogonally to the two panels. The electron beam emitted from the electron gun (10) is introduced into the space between the electrode structure (7) and the vertical deflecting electrode (3) substantially orthogonally to the two panels (1F,1B) in such a manner that the sectional shape of the beam becomes substantially band-like or linear along the horizontal scaning direction. Even with a large-sized screen, the apparatus is capable to sufficiently withstanding any external pressure such as atmospheric pressure while performing satisfactory visual representation with a uniform and excellent image quality.

公开(公告)号：FR2726690B1

公开(公告)日：1998-07-31

申请号：FR9413449

申请日：1994-11-09

Applicant: SONY CORP

Inventor： KIYOMIYA TADASHI ,  OHOSHI TOSHIO ,  OKITA MASAMI

IPC: H01J9/24 ,  C25D13/02 ,  H01J9/227 ,  H01J31/12 ,  H01J9/22 ,  C25D7/00

Abstract: A method of forming a fluorescent screen for a field emission display by electrodeposition comprises: forming a transparent solid electrode or transparent stripe or dot electrodes (1) in an effective area and a guard electrode (3, 8) in an ineffective area surrounding the effective area on the inner surface of a screen panel (13), immersing the screen panel (13) in an electrodeposition solution (12G, 12B, 12R, 12M) containing dispersed particles of a fluorescent material and contained in an electrodeposition tank (11), applying a voltage to the transparent solid electrode or the transparent stripe or dot electrodes, and a reverse bias voltage to the guard electrode (3, 8) to deposit particles of the fluorescent material only on the transparent solid electrode or the transparent stripe or dot electrodes to which the voltage is applied. The guard electrode (3, 8) prevents the deposition of particles of the fluorescent material in the ineffective area.

公开(公告)号：DE69402481D1

公开(公告)日：1997-05-15

申请号：DE69402481

申请日：1994-07-20

Applicant: SONY CORP

Inventor： OHOSHI TOSHIO ,  KIYOMIYA TADASHI ,  OKITA MASAMI

IPC: H01J29/32 ,  H01J1/30 ,  H01J29/08 ,  H01J29/18 ,  H01J29/58 ,  H01J31/12

Abstract: A field-emission display has a phosphor panel assembly comprising a transparent electrode (12), a plurality of coated phosphor layers (15) disposed on said transparent electrode (12) for emitting light in response to bombardment of electron beams emitted from field-emission cathodes, a plurality of black insulating layers (13) disposed between said coated phosphor layers (15), and a plurality of conductive layers (14) disposed on said black insulating layers (13), respectively, between said coated phosphor layers (15) and electrically insulated from said transparent electrode (12) by said black insulating layer (13). The black insulating layers (13) provide a black mask between the phosphor layers to improve the contrast ratio, and the conductive layers are effective to increase the percentage of electron beam utilization, thus improving the quality and resolution of displayed images. These advantages can be achieved without making image display unstable due to charging-up of the black mask and straying of secondary electrons.

公开(公告)号：DE69021523T2

公开(公告)日：1996-04-18

申请号：DE69021523

申请日：1990-12-20

Applicant: SONY CORP

Inventor： OHOSHI TOSHIO ,  NAKAYAMA AKIRA ,  INOUE JUNICHI ,  YAMAGUCHI MASARU

IPC: H01J31/12

Abstract: A planar display apparatus with a fluorescent screen (2) formed on the inner surface of a front panel (1F) in a planar tube body (1). An electron gun (10) is disposed at a position deviated in a vertical scanning direction from an opposite portion to the fluorescent screen (2), and a vertical deflecting electrode (3) composed of a plurality of parallel electrodes (3a) is disposed in a portion opposite to the fluorescent screen (2) on the side of a back panel (1B) opposed to the front panel (1F) of the planar tube body (1). In a space between the vertical deflecting electrode (3) and the fluorescent screen (2), an electrode structure (7) is provided having at least an electron lens scanning electrode (23) composed of a plurality of parallel electrodes (23a), a splitting electrode (4) for splitting an electron beam from the electron gun (10) into a plurality of beams, a modulating electrode (5), and a horizontal deflecting electrode (6). High-resistance support walls (8) are interposed between the electrode structure (7) and the back panel (1B) for pressing the electrode structure (7) toward the front panel (1F) to thereby retain the space between the front and back panel. The support walls (8) are so formed that plate surfaces thereof extend in the vertical scanning direction orthogonally to the two panels. The electron beam emitted from the electron gun (10) is introduced into the space between the electrode structure (7) and the vertical deflecting electrode (3) substantially orthogonally to the two panels (1F,1B) in such a manner that the sectional shape of the beam becomes substantially band-like or linear along the horizontal scaning direction. Even with a large-sized screen, the apparatus is capable to sufficiently withstanding any external pressure such as atmospheric pressure while performing satisfactory visual representation with a uniform and excellent image quality.

公开(公告)号：DE69513235T2

公开(公告)日：2000-05-11

申请号：DE69513235

申请日：1995-06-28

Applicant: SONY CORP

Inventor： KIYOMIYA TADASHI ,  OHOSHI TOSHIO ,  OKITA MASAMI ,  NEGISHI EISUKE ,  NAKADA SATOSHI

IPC: H01J9/22 ,  H01J29/02 ,  H01J29/08 ,  H01J29/18 ,  H01J29/32 ,  H01J29/86 ,  H01J31/12

Abstract: This invention relates to a fluorescent screen structure wherein a plurality of first electrodes (for example stripelike selected electrodes) having a plurality of fluorescent substances (especially fluorescent substances of different colors for a color screen) severally deposited thereon and second electrodes (for example stripelike reverse bias electrodes not for electrodeposition) not having the fluorescent substances deposited thereon between these first electrodes are provided on a common base (especially a glass substrate for a fluorescent screen panel) and a field emission display (FED) using this and methods for manufacturing these. According to the invention, even in such cases as when pillars for supporting a high vacuum are formed in an FED, a uniform fluorescent screen can be obtained without the pillars constituting an obstruction and a fluorescent substance can be deposited in such a way that it will not subsequently impair the level of a vacuum in a display in which the fluorescent screen is used and also a fluorescent substance can be deposited in a pattern such as a narrow stripe pattern having fine widths and fine pitches highly precisely and without mixed colors and with good manufacturability.

公开(公告)号：DE69127233T2

公开(公告)日：1998-03-19

申请号：DE69127233

申请日：1991-06-13

Applicant: SONY CORP

Inventor： OHOSHI TOSHIO ,  INOUE JUNICHI ,  YAMAMOTO MASANOBU

IPC: H01J31/12

公开(公告)号：DE69211581T2

公开(公告)日：1997-02-06

申请号：DE69211581

申请日：1992-03-12

Applicant: SONY CORP

Inventor： WATANABE HIDETOSHI ,  OHOSHI TOSHIO

IPC: H01J3/02 ,  H01J1/30 ,  H01J9/02

Abstract: The array of field emission cathodes of the type in which each element is made up of a substrate serving as a first electrode (1) comprises an insulating layer (2) in which a cavity (6) is formed, a cathode (9) formed in said cavity (6) and on the first electrode (1), and a second electrode (3) formed on the insulating layer (2). The second electrode (3) is coated with a protective metal layer (13) having good conductivity and corrosion resistance. The second electrode (3), i.e. the gate electrode is thus protected from oxidation and permits stable electron emission. Also disclosed is an array of field emission cathodes in which each element is made up of a first electrode (11) to apply voltage to a plurality of cathodes (9), a resistance layer (12), an insulating layer (2), and a second electrode (3) which are formed on top of the other. A cavity (6) is formed in the second electrode (3), i.e. the gate electrode and the insulating layer (2), and a cathode (9) is placed in each cavity (6) and on the resistance layer (12), with the first electrode (11) having a void under the respective cathode (9). This structure prevents short circuits between the cathode (9) and the gate electrode (3), which contributes to high yields and long life.

公开(公告)号：DE69211581D1

公开(公告)日：1996-07-25

申请号：DE69211581

申请日：1992-03-12

Applicant: SONY CORP

Inventor： WATANABE HIDETOSHI ,  OHOSHI TOSHIO

IPC: H01J3/02 ,  H01J1/30 ,  H01J9/02

Abstract: The array of field emission cathodes of the type in which each element is made up of a substrate serving as a first electrode (1) comprises an insulating layer (2) in which a cavity (6) is formed, a cathode (9) formed in said cavity (6) and on the first electrode (1), and a second electrode (3) formed on the insulating layer (2). The second electrode (3) is coated with a protective metal layer (13) having good conductivity and corrosion resistance. The second electrode (3), i.e. the gate electrode is thus protected from oxidation and permits stable electron emission. Also disclosed is an array of field emission cathodes in which each element is made up of a first electrode (11) to apply voltage to a plurality of cathodes (9), a resistance layer (12), an insulating layer (2), and a second electrode (3) which are formed on top of the other. A cavity (6) is formed in the second electrode (3), i.e. the gate electrode and the insulating layer (2), and a cathode (9) is placed in each cavity (6) and on the resistance layer (12), with the first electrode (11) having a void under the respective cathode (9). This structure prevents short circuits between the cathode (9) and the gate electrode (3), which contributes to high yields and long life.

公开(公告)号：EP2278585A4

公开(公告)日：2011-09-21

申请号：EP09746423

申请日：2009-03-09

Applicant: SONY CORP

Inventor： OHOSHI TOSHIO ,  NAKANO JUN ,  AKIYAMA SHOJI ,  TANUPRAYOGI REYNARD

IPC: G11B7/26

CPC classification number: G11B7/263 ,  G11B7/24038