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    DISPLAY DEVICE
    23.
    发明专利
    DISPLAY DEVICE 失效

    公开(公告)号：JPH09167583A

    公开(公告)日：1997-06-24

    申请号：JP34709495

    申请日：1995-12-15

    Applicant: FUTABA DENSHI KOGYO KK

    Inventor： ITO SHIGEO ,  YAMAURA TATSUO ,  MAKITA YOSHIO ,  NAMIKAWA MAMORU

    IPC: C03C13/00 ,  H01J9/18 ,  H01J29/02 ,  H01J29/87 ,  H01J31/12 ,  H01J1/96

    Abstract: PROBLEM TO BE SOLVED: To prevent drop in luminescent efficiency of a fluorescent material, deterioration in emission capacity of an emitter, and shortage of life by using a glass material containing no alkali ingredient in a support, and making the surface of the support hydrophobic. SOLUTION: An insulating support 3A is arranged as a support for holding a cathode substrate 10 and an anode substrate 4. A non-alkali glass fiber containing no alkali ingredient is used as the material for a support main body 3a of the support 3A. As the non-alkali glass fiber, practically, a quartz fiber or an E glass fiber which is a kind of boron silicate is used. Generation of alkali ingredient diffused in a production process and during display device driving is suppressed, and drop in emission efficiency of a fluorescent material dot pattern can be prevented. A hydrophobic coating layer 3b is formed on the support main body 3a of the support 3A, the moisture content on the surface of the support 3A is reduced, and deterioration in emission capacity of an emitter and the shortage of device life can be prevented.

    MANUFACTURE OF ELECTRODE SUBSTRATE SCREEN
    24.
    发明专利
    MANUFACTURE OF ELECTRODE SUBSTRATE SCREEN 失效

    公开(公告)号：JPH0676734A

    公开(公告)日：1994-03-18

    申请号：JP22854392

    申请日：1992-08-27

    Applicant: FUTABA DENSHI KOGYO KK

    Inventor： YAMAURA TATSUO ,  OGAWA YUKIO ,  MAKITA YOSHIO ,  NAMIKAWA MAMORU

    IPC: H01J9/14

    Abstract: PURPOSE:To provide an electrode substrate provided with screen, the height accuracy of which is sufficient, and the structural strength of which is also sufficient. CONSTITUTION:A sand blast resisting layer 2 of fixed pattern is formed on a substrate 1. Sand blasting is carried out, and the part other than the sand blast resisting layer 2 is cut, and a screen 5 is thus formed. A mask material 6 is coated on the entire uneven surface of the substrate 1. Sand blasting is carried out, and the mask material 6 is left only on the side surface of the screen 5. A thin film conductor 7 is formed between the screens 5 and 5, while the anti-sand blast layer 2 and the mask material 6 on the screen 5 are removed. A phosphor 8 is coated on the thin film conductor 7, and a positive electrode 9 is thus formed. Since the screen 5 is directly cut out of the substrate 1, the height accuracy is good, and the mechanical strength is also sufficient.

    LIGHT EMITTING ELEMENT AND MANUFACTURE THEREOF
    25.
    发明专利
    LIGHT EMITTING ELEMENT AND MANUFACTURE THEREOF 失效

    公开(公告)号：JP2000306508A

    公开(公告)日：2000-11-02

    申请号：JP10966899

    申请日：1999-04-16

    Applicant: FUTABA DENSHI KOGYO KK

    Inventor： NAMIKAWA MAMORU ,  NAITO YASUYUKI ,  NOMURA YUJI

    IPC: H01J9/227 ,  H01J29/32 ,  H01J31/12

    Abstract: PROBLEM TO BE SOLVED: To enhance display brightness by phosphor layers by improving light transmissivity of an insulating layer covering black matrices(BMs) formed on an anode substrate. SOLUTION: BMs 32 made of Cr/CrOx are formed at the inner surface of an anode substrate 31 of a field emission display(FED). The BM 32 is composed of a Cr/CrOx layer on the anode substrate 31 and a Cr layer laminated on the Cr/CrOx layer. An insulating layer 33 is formed in such a manner as to cover the conductive BM 32 and the anode substrate 31, and further, anode conductors 34 are mounted on the insulating layer 33. Phosphor layers 35 are mounted on the anode conductor 34. A protective layer 36 is formed on the insulating layer 33 in such a manner as to cover the anode conductors 34. The thickness of the BM 32 is as thin as 1500 Å. It is sufficient that the insulating layer 33 for smoothening the BM 32 also is thinner than conventional. A thin insulating layer of a good quality can be formed by sputtering or CVD. Consequently, insulating properties between the adjacent anode conductors 34, 34 can become excellent. The thickness of the insulating layer 33 is so thin that its light transmittance becomes 98%, thereby reducing degradation of lighting brightness of the FED. Since the baking temperature of the phosphor layer is 520 deg.C or lower, an increase in reflectivity of the BM becomes twice or less that in the case where no heat treatment is performed.

    FLUORESCENT LIGHT EMITTING ELEMENT
    26.
    发明专利
    FLUORESCENT LIGHT EMITTING ELEMENT 失效

    公开(公告)号：JP2000285821A

    公开(公告)日：2000-10-13

    申请号：JP9215199

    申请日：1999-03-31

    Applicant: FUTABA DENSHI KOGYO KK

    Inventor： NOMURA YUJI ,  NAMIKAWA MAMORU ,  NAITO YASUYUKI

    IPC: H01J29/32 ,  C09K11/00 ,  C09K11/54 ,  C09K11/67 ,  C09K11/78 ,  H01J31/12

    Abstract: PROBLEM TO BE SOLVED: To improve the light permeability of a red filter in a FED (field emission light emitting element). SOLUTION: This FED has three color filters of R(red), G(green), and B(blue). A pigment for the green filter is (Ti-Ni-Co-Zn)O, a pigment for the blue filter is (Co-Al)O, and a pigment for the red filter is (Fe-Zn-Cr)O being a brown inorganic pigment. ZnO:Zn can be used for green and blue phosphors. Y2O3: Eu, SrTiO3:Pr, ZnO:Zn or the like can be used for a phosphor having a red component. Light transmittance before and after mounting of (Fe-Zn-Cr)O to the FED is indicated. Light transmittance after mounting between 580 nm to 620 nm being a wavelength band of red is reduced at most only by 10% of that before mounting. This indicates that practically none of the (Fe-Zn-Cr)O are deoxidized even by a reducing atmosphere inside the FED.

    ANODE SUBSTRATE HAVING FILTER AND DISPLAY DEVICE HAVING SUBSTRATE WITH FILTER, AND MANUFACTURE THEREOF
    27.
    发明专利
    ANODE SUBSTRATE HAVING FILTER AND DISPLAY DEVICE HAVING SUBSTRATE WITH FILTER, AND MANUFACTURE THEREOF 失效

    公开(公告)号：JP2000162977A

    公开(公告)日：2000-06-16

    申请号：JP33418598

    申请日：1998-11-25

    Applicant: FUTABA DENSHI KOGYO KK

    Inventor： NOMURA YUJI ,  NAMIKAWA MAMORU ,  NAITO YASUYUKI

    IPC: G09F9/00 ,  G02B5/20 ,  G03F7/004 ,  H01J9/24 ,  H01J29/89 ,  H01J31/12

    Abstract: PROBLEM TO BE SOLVED: To smooth a surface on an inorganic pigment layer, and to reduce disconnection failure of anode conductors formed thereon. SOLUTION: A black matrix 3 having lattice form rectangular areas 3a is formed on a substrate 2, and color filters 4 of R, G, B are formed in the rectangular areas 3a, and an inorganic pigment layer 5 consisting of the black matrix 3 and the color filters is formed on the substrate 2. A bonding layer 6 consisting of glass with a high transmittance and a low melting point is formed on the whole surface of the inorganic pigment layer 5, and a thin glass plate 7 slightly differing in the thermal expansion coefficient from the substrate 2 and the bonding layer 6 is put on the bonding layer 6, and baked with a predetermined weight applied thereon. After that, an anode substrate 1 is completed by patterning anode conductors 8 on the smooth surface of the thin glass 7 by making them correspond to the positions of the color filters (4).

    ANODE SUBSTRATE HAVING COLOR FILTER, PRODUCTION OF ANODE SUBSTRATES, DISPLAY DEVICE AND PRODUCTION OF DISPLAY DEVICE
    28.
    发明专利
    ANODE SUBSTRATE HAVING COLOR FILTER, PRODUCTION OF ANODE SUBSTRATES, DISPLAY DEVICE AND PRODUCTION OF DISPLAY DEVICE 失效

    公开(公告)号：JPH11337718A

    公开(公告)日：1999-12-10

    申请号：JP14427998

    申请日：1998-05-26

    Applicant: FUTABA DENSHI KOGYO KK

    Inventor： NOMURA YUJI ,  NAMIKAWA MAMORU ,  NAITO YASUYUKI

    IPC: G02B5/20 ,  G02F1/1335 ,  G09F9/30 ,  H01J1/66 ,  H01J1/74 ,  H01J9/227 ,  H01J29/24 ,  H01J29/32 ,  H01J31/12 ,  H01J31/15

    Abstract: PROBLEM TO BE SOLVED: To make inorg. pigment filters hardly destroyable by fixing the binding strength thereof to a substrate and to enable the formation of a glass layer thereon. SOLUTION: Black matrices (BMs) 2 of inorg. pigments are formed on the substrate 1. Color filters R, G, B of red, green and blue are formed in the regions between the BMs 2. The filters R, G, B and the BMs 2 are completed by firing the substrate 1. A filter binder 3 which is a sol-gel liquid contg. an org. Si compd. is applied on the BMs 2 and the respective filters R, G, B. The filter binder 3 penetrates the inside from the openings of the surfaces of the BMs 2 and the filters R, G, B. The air in the holes emerges outside. The substrate 1 is fired in the atm. air. The org. Si compd. turns to SiO2 and remains on or in the BMs 2 and the filters. The binding strength of the easy destroyable BMs 2 and the filters is intensified to securely bind the BMs and the filters to the substrate 1 as well. A glass layer 4 (a smooth layer) is formed. An acid resistant protective film 5 is formed. Transparent conductive films 6 are formed in the patterns corresponding to the filters.

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