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公开(公告)号：FR2749702B1
公开(公告)日：2005-08-05
申请号：FR9707050
申请日：1997-06-06
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
IPC: H01J11/12 , H01J11/14 , H01J11/22 , H01J11/24 , H01J11/26 , H01J11/28 , H01J11/32 , H01J11/34 , H01J11/36 , H01J17/49 , H01J1/88 , G09F9/313 , G09G3/28
Abstract: An AC plasma display panel includes first and second plates, a discharge space, a plurality of pairs of scan electrodes and common electrodes, and a plurality of data electrodes. The first and second plates are arranged opposite to each other through a predetermined gap, at least one of which is transparent. The discharge space is partitioned into a plurality of pixels. The pairs of scan electrodes and common electrodes are formed on the inner surface of the first plate in the row direction to allow emission sustaining surface discharge therebetween. The pixels are arranged at the intersections of the scan and common electrodes and the data electrodes. In this arrangement, the following relation is established 0.80
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公开(公告)号：DE60200770D1
公开(公告)日：2004-08-26
申请号：DE60200770
申请日：2002-05-17
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
IPC: H04N5/66 , G09G3/20 , G09G3/288 , G09G3/291 , G09G3/292 , G09G3/293 , G09G3/294 , G09G3/298 , G09G3/28
Abstract: A PDP driving method, in which a stable writing discharge can be realized by using a scanning pulse whose width is narrow without changing a structure of the panel and an image having high light emitting luminance can be realized in the large number of scanning lines, is provided. When a scanning pulse is applied to scanning electrodes, a writing discharge is generated at all of display cells. Electric charge particles generated by the writing discharge at the display cells are supplied to display cells on the next scanning line by diffusion. The writing discharge is stably generated in high speed at the next scanning line when a scanning pulse is applied to the next scanning line by receiving the electric charge particles, consequently, the width of the scanning pulse can be made to be narrow. In order that the writing discharge is generated at display cells, which do not shift to a sustaining discharge, a sub scanning pulse being negative polarity is applied to common electrodes.
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公开(公告)号：FR2749702A1
公开(公告)日：1997-12-12
申请号：FR9707050
申请日：1997-06-06
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
IPC: H01J11/12 , H01J11/14 , H01J11/22 , H01J11/24 , H01J11/26 , H01J11/28 , H01J11/32 , H01J11/34 , H01J11/36 , H01J17/49 , H01J1/88 , G09F9/313 , G09G3/28
Abstract: The display has first and second plates (1,2) facing each other at a predetermined separation. One of the plates is transparent. A discharge space (11) defined by these two plates is filled with a discharge gas. The discharge space is divided into multiple pixels. Multiple pairs of scanning electrodes (3) and common electrodes (4) are formed in rows on an internal surface of the first plate, and provide emission maintenance surfaces. Multiple data electrodes (10) are formed on the internal surface of the second plate in columns to permit a discharge opposed to the writing emission. A pixel is formed by the intersection of the rows and columns.
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公开(公告)号：JPH1165514A
公开(公告)日：1999-03-09
申请号：JP22494897
申请日：1997-08-21
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
Abstract: PROBLEM TO BE SOLVED: To improve light-emitting efficiency and to reduce power consumption by applying a voltage, whose waveform has the shape of a high voltage which is sufficient to generate a sustaining discharge after having the shape of a low voltage preceded, for a long time. SOLUTION: When a plasma display panel(PDP) is driven, a pulse-shaped voltage shown in (a) is applied on a common electrode and a scanning electrode. The pulse shape (a) is formed by applying a low voltage V1 for a long time t1 , e.g., t1 =3 microsec., V1 =100 V, thereafter applying a high voltage V2 for a long time t2 , e.g., t2 =3 microsec., and V2 =150 V. The feature of this pulse shape is set so that the actual discharge is generated at the time of applying the succeeding voltage and the discharge is not generated at the time of applying the preceeding voltage. A pulse (b) having such a shape is applied on the common electrode 13 and the scanning electrode 12, respectively and is used for a sustaining discharge pulse.
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公开(公告)号：JPH1124630A
公开(公告)日：1999-01-29
申请号：JP18222497
申请日：1997-07-08
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a high luminescent brightness with a small power consumption without decreasing a luminous efficiency in case of a sustained discharge, by establishing a sustained-discharge frequency during the last secondary sub- sustained-discharge period among sub-sustained-discharge periods as secondary sustained frequency which is lower than primary sustained-discharge frequency. SOLUTION: Sustained-discharge pulses are applied with a high frequency fH to both a common electrode and a scanning electrode at the beginning of a sustained-discharge period, and sustained-discharge pulses are applied with a low frequency fL (fL
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Patent Agency Ranking
公开(公告)号：JPH10288974A
公开(公告)日：1998-10-27
申请号：JP9720297
申请日：1997-04-15
Applicant: NEC CORP
Inventor： YOSHIOKA TOSHIHIRO , MAKINO MITSUYOSHI
Abstract: PROBLEM TO BE SOLVED: To adjust display color tone while keeping the maximum light emitting luminance and the gradation number of respective colors R, G and B. SOLUTION: Sub-fields SFa and SFb for adjusting display color tone are formed in one field in addition to sub-fields SF1 -SF8 for displaying gradation. Then, when the display color tone of some color is adjusted, the maximum light emitting luminance thereof is enhanced by displaying the gradation thereof by using both of the sub-fields SFa and SFb and the sub-fields SF1 -SF8 . Thus, excellent display quality is realized by easily adjusting the display color tone while keeping the maximum light emitting luminance and the gradation number of the color other than the color whose color tone is adjusted.
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公开(公告)号：JPH09330663A
公开(公告)日：1997-12-22
申请号：JP14560496
申请日：1996-06-07
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
IPC: H01J11/12 , H01J11/14 , H01J11/22 , H01J11/24 , H01J11/26 , H01J11/28 , H01J11/32 , H01J11/34 , H01J11/36 , H01J11/00 , H01J11/02
Abstract: PROBLEM TO BE SOLVED: To properly drive an AC plasma display panel even when the surface discharge interval is expanded and improve luminous efficiency by setting the ratio of the gap size between two substrates against the gap size between a scanning electrode and a common electrode to a specific value. SOLUTION: The ratio between the surface discharge interval (d) and the opposite discharge interval (h) is specified, and this AC plasma display panel can be properly driven even when the surface discharge interval (d) is expanded. When the surface discharge interval (d) is increased, the opposite discharge interval (h) is increased in response to the increment of the surface discharge interval (d), and the value of h/d is set to the range of 0.8-1.25. The maintenance margin is increased, the data voltage is reduced, and the power consumption can be reduced. A wide-gap panel having high luminous efficiency is easily utilized.
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公开(公告)号：JP2001306027A
公开(公告)日：2001-11-02
申请号：JP2000118452
申请日：2000-04-19
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a method for driving a plasma display device permitting to reduce a scanning pulse voltage, and use a low-cost scanning driver having a low withstand voltage. SOLUTION: During the period in which a scanning pulse of the negative polarity is applied to scanning electrodes, a sub-scanning pulse of the positive polarity is applied to a common electrode. Surface emission is selectively generated, by varying only a counter potential difference without generating counter emission, and that is used as write emission. The scanning pulse voltage can be reduced by making the sub-scanning pulse voltage higher than the scanning pulse voltage.
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公开(公告)号：JPH10333635A
公开(公告)日：1998-12-18
申请号：JP14169797
申请日：1997-05-30
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
Abstract: PROBLEM TO BE SOLVED: To enhance the emission luminance, reduce the power consumption, and improve the display quality by setting an inter-electrode pulse shape generating one maintenance discharge into a shape combining a short-period high potential difference and a long-period low potential difference. SOLUTION: An inter-electrode pulse shape generating one maintenance discharge is formed by combining a short-period high potential difference and a long-period low potential difference. After a short-period high voltage, e.g. t1 =200 ns, V1 =200 V, is applied, a long-period low voltage, e.g. t2 =4 μs, V2 =130 V, is applied to form the pulse shape. The first point of the pulse shape is that the applying time t1 of the preceding high voltage is shorter than the period until the discharge current wave-form becomes a peak after a pulse is applied. The second point is that the long-period low voltage of the applying time t2 and voltage V2 can maintain an electric discharge with no high voltage applied. The pulse of this shape is utilized for a discharge maintaining pulse.
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公开(公告)号：JPH08160913A
公开(公告)日：1996-06-21
申请号：JP30050494
申请日：1994-12-05
Applicant: NEC CORP
Inventor： MAKINO MITSUYOSHI
Abstract: PURPOSE: To suppress the saturation of the light emitting luminance of phosphors and to make gradation changes continuous and linear. CONSTITUTION: One field is divided into (n) pieces (n is an integer of >=2) of sub-fields and the light emission luminance of the respective sub-fields is weighted. The allowance time for adjusting, etc., the time of the sub-fields or field of the low light emission luminance is thereafter arranged with respect to the sub-fields of the particularly high light emission luminance in the case the gradations are changed by selectively allowing (m) pieces (m is an integer of >=1 and
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