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11. 发明专利

JP2000123971A MANUFACTURE OF ORGANIC EL 失效
公开(公告)号：JP2000123971A
公开(公告)日：2000-04-28
申请号：JP29383898
申请日：1998-10-15
申请人： FUTABA DENSHI KOGYO KK
发明人： OGAWA YUKIO , TSURUOKA YOSHIHISA , FUKUDA TATSUO
IPC分类号： H05B33/04 , H01L27/32 , H01L51/50 , H01L51/52 , H05B33/10 , H05B33/12 , H05B33/14
摘要： PROBLEM TO BE SOLVED: To form a highly fine pattern while eliminating poor insulation between electrodes and improving the characteristics of an EL without causing damages and chemical changes in an organic layer. SOLUTION: A first stripe electrode (positive electrode) 5 formed with a transparent conductive film is provided on a first substrate 2 formed with a moisture proof film. A CuPc organic film 8a is filmed on the first electrode 2 at a predetermined thickness as desired. A second stripe electrode (negative electrode) 6 formed with an Al-Li film is provided on a second substrate 3 formed with a glass substrate. An Alq3 organic film 8c and a αNPD organic film 8b are deposited in sequence on the second electrode 6 at a desired thickness and the Cu-Pc organic film 8a is further filmed thereon at a remaining thickness. The separately formed CuPc organic film 8a is adhered to the substrates 2, 3 and the first substrate 2 is opposed to the second substrate 3 with the pattern of the first electrode 5 perpendicular to that of the second electrode 6 to seal the substrate 2 to the substrate 3 laminated thereto with sealing material 9. Then, they are evacuated to be sealed.

12. 发明专利

JP2000021563A ORGANIC EL ELEMENT AND ITS MANUFACTURE 失效
公开(公告)号：JP2000021563A
公开(公告)日：2000-01-21
申请号：JP18890498
申请日：1998-07-03
申请人： FUTABA DENSHI KOGYO KK
发明人： OGAWA YUKIO , FUKUDA TATSUO
IPC分类号： H05B33/02 , H01L51/50 , H05B33/10 , H05B33/12 , H05B33/14 , H05B33/26 , H05B33/28
摘要： PROBLEM TO BE SOLVED: To eliminate an insulation defect due to electrical conduction between electrodes completely by smoothing a substrate on which the electrodes are formed. SOLUTION: An organic EL(electroluminescence) element 1 is formed from a multilayer structure composed of a glass substrate 2 having an insulating property and translucency, an insulating layer 3 formed on the surface of the glass substrate 2, a positive electrode 4 formed from a transparent conductive film formed on the insulating layer 3, an organic layer 5 including a luminescent layer formed on time positive electrode 4, and a negative electrode 7 formed from a metal thin film formed on the organic layer 5. The insulating layer 3 is formed from a resin coating film that has heat resistance and transparency and also has a film thickness of 0.1 - tens μm, and its minute surface shape is extremely smoothed by completely burying the irregularity of the surface including polishing flaws C of the surface of the glass substrate 2 caused by a polishing process.

13. 发明专利

JP2000013571A OPTICAL PRINTING HEAD 失效
公开(公告)号：JP2000013571A
公开(公告)日：2000-01-14
申请号：JP17758498
申请日：1998-06-24
申请人： FUTABA DENSHI KOGYO KK
发明人： FUKUDA TATSUO
IPC分类号： B41J2/44 , H01L33/58 , H01L33/60 , H04N1/036 , H04N1/04 , H04N1/113 , H01L33/00
摘要： PROBLEM TO BE SOLVED: To improve mechanical reliability, to realize miniaturization, to perform the simultaneous exposure of red, green and blue and to shorten the exposure time. SOLUTION: A positive voltage is applied to a control electrode 10, an anode conductor 5 is statically driven in synchronism with it, and the positive voltage is applied to the anode conductor 5 of a light emission part to be a lighting object. The light of a light emission block R passes through a red filter 19R, reflected by a reflection mirror 2B, transmitted through dichroic mirrors 2Ca and 2Cb and made incident on a lens system 3. The light of a light emission block G passes through a green filter 19G, reflected by the dichroic mirror 2Ca, transmitted through the dichroic mirror 2Cb and made incident on the lens system 3. The light of the light emission block B passes through a blue filter 19B, is reflected by the dichroic mirror 2Cb, and made incident on the lens system 3. The light which is made incident on the lens system 3 is converged to a prescribed position on a film 21. Matched with the light emission drive, a print head is moved in a sub-scanning direction.

14. 发明专利

JPH11329724A ORGANIC EL DISPLAY ELEMENT AND PRODUCTION OF THE SAME 失效
公开(公告)号：JPH11329724A
公开(公告)日：1999-11-30
申请号：JP12607898
申请日：1998-05-08
申请人： FUTABA DENSHI KOGYO KK
发明人： FUKUDA TATSUO , OGAWA YUKIO
IPC分类号： H05B33/10 , H01L51/50 , H05B33/12 , H05B33/14 , H05B33/22
摘要： PROBLEM TO BE SOLVED: To provide production of an organic EL display element comprising a simple procedure, yet capable of forming diaphragms uniformly wherewith isolation between negative electrodes can be secured. SOLUTION: A striped translucent electrodes 3 exist on an upper side of a translucent substrate 1. Insulating films 5 exist between positive electrodes 3, and insulating films 6 exist on the positive electrodes 3, orthogonal to the insulating films 5. Insulating ribs 7 exist on the insulating films 6, and organic thin film layers 8 and striped negative electrodes 9 exist between the insulating films 6. A negative-type photosensitive polyimide is spread on a glass substrate 2 having the positive electrodes on it. The negative-type photosensitive polyimide is exposed with underdose light using an exposure mask having a pattern corresponding to that of the insulating films 5. Next, the negative-type photoresist polyimide is exposed with overdose light using an exposure mask corresponding to that of the insulating film 6 and developed. The underdose part suffers significant decrease in its film thickness, whereas the overdosed part suffers no decrease in its film thickness. A structure consisting of two- staged insulating layers can be formed in a single process. Insulating ribs 7 are provided on this structure. Further, organic thin film layers 8 and negative electrodes 9 are deposited. Adjacent negative electrodes 9 are electrically isolated mutually and the negative electrodes are also isolated from the positive electrodes with the insulating film 4.

15. 发明专利

JPH11260554A ORGANIC ELECTROLUMINESCENT ELEMENT 失效
公开(公告)号：JPH11260554A
公开(公告)日：1999-09-24
申请号：JP8038698
申请日：1998-03-12
申请人： FUTABA DENSHI KOGYO KK
发明人： TANAKA SATORU , FUKUDA TATSUO , YANAI HIROYUKI
IPC分类号： C09K11/06 , H01L51/50 , H05B33/14
摘要： PROBLEM TO BE SOLVED: To provide an EL element having practical, high luminescence and sufficient durability by doping a substance formed from a terthiophene derivative in a luminescent layer that is formed from an organic compound and located between a pair of electrodes. SOLUTION: In this organic EL element, a luminescent layer formed from an organic compound is formed between a pair of electrodes at least one of which is transparent. A substance formed from a terthiophene derivative expressed by formula I into the luminescent layer. In the formula I, each group represented by R1 and R2 is a group arbitrarily selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group and groups represented by formula II through formula XI. The doping ratio in the range of 0.5-5 mol.% is preferable and the ratio of 1 mol.% is most suitable. If the terthiophene derivative is used for the organic luminescent layer, the luminescence of the EL element is improved and continuous light emission that is stable for more than 1000 hours can be provided. In addition, luminous colors can be varied by changing substitutional groups.

16. 发明专利

JPH1167454A MULTI-COLOR ORGANIC ELECTROLUMINESCENT ELEMENT AND METHOD FOR PRODUCING ELEMENT THEREOF 失效
公开(公告)号：JPH1167454A
公开(公告)日：1999-03-09
申请号：JP23115497
申请日：1997-08-27
申请人： FUTABA DENSHI KOGYO KK
发明人： TSURUOKA YOSHIHISA , TAKAHASHI HISAMITSU , TANAKA SATORU , MIYAUCHI TOSHIO , FUKUDA TATSUO
IPC分类号： H05B33/10 , G09F9/30 , H01L51/00 , H01L51/30 , H01L51/50 , H05B33/12 , H05B33/14
摘要： PROBLEM TO BE SOLVED: To provide a multi-color organic EL element with a structure in which color mixing due to leaking luminescence is not caused even if a luminescent layer is formed by a mask evaporation method. SOLUTION: This multi-color organic EL element comprises a substrate 1, a plurality of stripe-like anodes 2 formed on the substrate at prescribed intervals from one another, a hole transporting layer 3 formed on the substrate 1 as to cover the anodes 2, a plurality of kinds of luminescent layers R, G, B with different band gaps formed in a prescribed order on the hole transporting layer 3 in stripe-line shape corresponding to the anodes 2, and a plurality of stripe-like cathodes 4 formed on the luminescent layers R, G, B at prescribed intervals so as to intersect the anodes 2. In a plurality of neighboring luminescent layer R, G, B, ones with higher band gap enter between the layers with smaller band gap and the hole transporting layer 3. The recombination energy is moved to the luminescent layer with smaller band gap Eg to emit light and the rim parts of the neighboring luminescent layers which are turned in the hole transporting layer 3 side do not emit light.

17. 发明专利

JPH03119640A FLUORESCENT LIGHT EMITTING TUBE 失效
公开(公告)号：JPH03119640A
公开(公告)日：1991-05-22
申请号：JP25533289
申请日：1989-10-02
申请人： FUTABA DENSHI KOGYO KK
发明人： ITO SHIGEO , FUKUDA TATSUO , TONEGAWA TAKESHI , NIIYAMA TAKEHIRO
IPC分类号： H01J31/15 , H01J31/12
摘要： PURPOSE:To facilitate manufacture and reduce power consumption by providing indirectly heated cathodes for divided phosphor layers, and switching the cathode potential to control luminescence. CONSTITUTION:When a heater 21 is excited and heated to 600-650 deg.C, for example, if the potential applied to a cathode substrate 23 is lower than the anode potential (by the accelerating electrode potential because an accelerating electrode 13 is provided immediately before a cathode 15), thermoelectrons are emitted from an electron emitting layer 24 heated by the heater 21, and they are pulled toward an anode section 6 and collide with phosphor layers for luminescence. lf the potential of the substrate 23 is equal to or higher than the anode potential (potential of the electrode 13), the emission of electrons from the layer 24 is suppressed even though the layer 24 is heated by the heater 21, and electron emission can be controlled by switching the potential of the substrate 23. No anode selecting control electrode is required, and the manufacture of a light emitting tube is facilitated. The grid reactive current can be suppressed, and power consumption can be reduced.

18. 发明专利

JPS60253144A COLOR FLUORESCENT LIGHT EMITTING TUBE 失效
公开(公告)号：JPS60253144A
公开(公告)日：1985-12-13
申请号：JP10809384
申请日：1984-05-28
申请人： FUTABA DENSHI KOGYO KK
发明人： FUKUDA TATSUO , IKENAGA AKIYOSHI
IPC分类号： H01J63/06
摘要： PURPOSE:To completely prevent leakage of electrons to the adjacent area, by arranging a shielding plate above both sides of the diffusion plates. CONSTITUTION:Screen grids are positioned to cover control grids 23 concentrically, and opposes each light emitting cell 12. Screen bodies 30 are positioned diagonally above the diffusion plates 14 and faces the diffusion plates 14 from both sides of the screen grids 28. After high speed electron beam released from a negative electrode 22 is controlled by the control grid 23 so that it will pass the control grid 23 only in the light emitting cell regeon of the light emitting cell which is to emit light, it passes the screen grid 28 towards the light emitting cells 12. Then it receives diffusion action from the diffusion plates 14, so as to head towards the periphery of the cell, and collides with the surface of the light emitting cells 12 uniformly, to make the light emitting cells 12 emit light. During this period, the electrons within the region are sealed in the region by the diffusion plates 24, whereas the electrons which jumps into the adjacent area over the diffusion plate is stopped by the screen bodies 30.

19. 发明专利

JPS6012384B2 失效
公开(公告)号：JPS6012384B2
公开(公告)日：1985-04-01
申请号：JP7471079
申请日：1979-06-15
申请人： FUTABA DENSHI KOGYO KK
发明人： MORIMOTO KYOSHI , TOKI HITOSHI , FUKUDA TATSUO , KUKIMOTO HIROSHI
IPC分类号： C09K11/08 , H01J29/20 , H01J31/15

20. 发明专利

JP2001223079A ORGANIC EL DISPLAY ELEMENT 失效
公开(公告)号：JP2001223079A
公开(公告)日：2001-08-17
申请号：JP2000032117
申请日：2000-02-09
申请人： FUTABA DENSHI KOGYO KK
发明人： TAKAHASHI HISAMITSU , FUKUDA TATSUO
IPC分类号： H05B33/12 , H01L51/50 , H01L51/52 , H05B33/14 , H05B33/22 , H05B33/26
摘要： PROBLEM TO BE SOLVED: To aim at a reduction of power consumption by lowering wiring resistance, while raising a flexibility of design. SOLUTION: On the substrate 3 which has a light permeability and an insulation characteristic, an anode 4 of a transparent electric conduction film which has a lead part 4a at one part of each segment a-g corresponding to forms of display segments 2A, 2B, is formed. On the anode 4, the display segments 2A, 2B are formed and an insulation layer 5 which has an opening in one part of the lead part 4a, is formed. On the insulated layer 5, an organic layer 6 which consists of organic compound material is formed at a part except for the part of the lead part 4a exposed from the insulated layer 5. On the organic layer 6, a cathode 7 of a metal film is formed at a part except for the part of the lead part 4a exposed from the organic layer 6. On a substrate 11 which has an insulation characteristic, circuit pattern 12 is formed for every segment a-g in which the display segments 2A and 2B are common. The substrate 3 and the substrate 11 are sealed up at a perimeter portion by a sealing agent 14, sp that the lead part 4a of the anode 4 and the wiring pattern 12 can be connected through a connection part 13.

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