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1. 发明专利

JPH0533510B2 失效
公开(公告)号：JPH0533510B2
公开(公告)日：1993-05-19
申请号：JP15675087
申请日：1987-06-23
申请人： SHARP KK
发明人： ISHII TOSHIAKI , INOHARA AKIO , KISHISHITA HIROSHI , KAMIIDE HISASHI
IPC分类号： H05B33/04

2. 发明专利

JPH0528387B2 失效
公开(公告)号：JPH0528387B2
公开(公告)日：1993-04-26
申请号：JP10537784
申请日：1984-05-23
申请人： SHARP KK
发明人： HARADA SHIGEYUKI , OOBA TOSHIHIRO , KANETANI YOSHIHARU , KAMIIDE HISASHI
IPC分类号： G09G3/30

3. 发明专利

JPH0375993B2 失效
公开(公告)号：JPH0375993B2
公开(公告)日：1991-12-04
申请号：JP9900786
申请日：1986-04-28
申请人： SHARP KK
发明人： ISHII TOSHIAKI , SAWAE KYOSHI , INOHARA AKIO , KANETANI YOSHIHARU , KAMIIDE HISASHI
IPC分类号： G09F9/00 , H01R43/02 , H05F3/02 , H05K7/14

4. 发明专利

JPH03182793A DRIVING METHOD FOR DISPLAY DEVICE 失效
公开(公告)号：JPH03182793A
公开(公告)日：1991-08-08
申请号：JP32284889
申请日：1989-12-12
申请人： SHARP KK
发明人： SAKAMOTO ATSUSHI , OGAWA IKUO , SHOJI KAZUO , OBA TOSHIHIRO , KAMIIDE HISASHI
IPC分类号： G09G3/36 , G09F3/20 , G09G3/20 , G09G3/30
摘要： PURPOSE:To reduce the power consumption at the time of low luminance light emission in a gradation display by varying stepwise a modulation voltage while a write voltage is being applied and applying only a low modulation voltage at the time of light emission of low gradation luminance. CONSTITUTION:The gradation display is executed by interposing a dielectric layer between plural scanning side electrodes S1 - S4 and plural data side electrodes D1 - D8 arranged in the direction in which they intersect with each other, applying a modulation voltage for varying pulse width in accordance with display data to the data side electrodes D1 - D8, and applying a write voltage in line sequence to the scanning side electrodes S1 - S4. Also, while the write voltage is being applied, the modulation voltage is varied stepwise, and at the time of light emission of low gradation luminance, only a low modulation voltage is applied. In such a way, the lower a displayed luminance level is, the lower amplitude of the modulation voltage becomes, therefore, the power consumption at the time of light emission of low luminance is reduced in that degree.

5. 发明专利

JPH03146990A DISPLAY DEVICE 失效
公开(公告)号：JPH03146990A
公开(公告)日：1991-06-21
申请号：JP28652089
申请日：1989-11-02
申请人： SHARP KK
发明人： HARADA SHIGEYUKI , ISHIHATA KAMIYOSHI , OBA TOSHIHIRO , KAMIIDE HISASHI
IPC分类号： G09F9/30 , G09F9/40
摘要： PURPOSE:To suppress a current flowing to a display area, to miniaturize a device and to reduce the cost thereof by making the polarity of a voltage impressed on the first display area of an image display part and the polarity of a voltage impressed on the second display area mutually reversed. CONSTITUTION:In a P frame, the voltage 0V is impressed on an electrode XA on a data side from a data side driving circuit 260 as a modulation voltage corresponding to light emission. On the other hand, since display data UData and LData which is respectively given to the driving circuits 260 and 270 are inverted by reversal control rotation, the voltage VM is impressed on an electrode XB from a power source circuit 280 through the circuit 270 as a write voltage. At this time, the voltage having a positive polarity VW + VM is impressed on an electrode YA on a scanning side from a power source circuit 310 through a driving circuit 220 as the write voltage by switching a switching circuit 340a. Besides, by switching a switching circuit 340b, the voltage -VW having a negative polarity is impressed on the electrode YB on the scanning side from a power source circuit 330 through a driving circuit 240 as the write voltage. Thus, light is emitted from picture elements A and B.

6. 发明专利

JPH0375691A DISPLAY DEVICE 失效
公开(公告)号：JPH0375691A
公开(公告)日：1991-03-29
申请号：JP21217089
申请日：1989-08-17
申请人： SHARP KK
发明人： HARADA SHIGEYUKI , ISAKA KINICHI , INOHARA AKIO , KISHISHITA HIROSHI , KAMIIDE HISASHI
IPC分类号： G09G3/30 , G05F3/04 , G09F9/30
摘要： PURPOSE:To eliminate display noise and malfunction of other circuits by inserting a current limiting element at least into one terminal side of a switching element which lowers the potential of the electrode of a display panel to a ground potential. CONSTITUTION:The display panel 20 is constituted by interposing a dielectric layer between plural scanning side electrodes Y and plural data side electrodes X arranged in directions where the electrodes intersect each other. The current limiting element (r) is inserted at least into one terminal side of the switching elements DT1-DTi which lower the potential of the electrode of the display panel 20 to the ground potential, among switching elements groups PT1-PTi, NT1-NTi, UT1-UTi, and DT1-DTi. Therefore, the fluctuation of the ground potential caused by a discharged current is minimized because of an inductance component arising between wirings of an earth line la, etc. Thereby display noise and malfunction of other circuits are eliminated.

7. 发明专利

JPH0245197B2 失效
公开(公告)号：JPH0245197B2
公开(公告)日：1990-10-08
申请号：JP13792981
申请日：1981-08-31
申请人： SHARP KK
发明人： OOBA TOSHIHIRO , KINOSHITA HIROSHI , KANETANI YOSHIHARU , KAMIIDE HISASHI
IPC分类号： G09G3/12 , G09F9/30 , G09G3/30

8. 发明专利

JPH02230689A MANUFACTURE OF DISPLAY ELEMENT 失效
公开(公告)号：JPH02230689A
公开(公告)日：1990-09-13
申请号：JP5248789
申请日：1989-03-02
申请人： SHARP KK
发明人： ISHII TOSHIAKI , YAMAMOTO KYOICHI , INOHARA AKIO , KISHISHITA HIROSHI , KAMIIDE HISASHI
IPC分类号： H05B33/08 , H05B33/10
摘要： PURPOSE:To reduce the man-hour for aging and prevent electrodes from being bruised without using jigs by connecting a flexible printed board for supplying signals to an electrode cluster of a thin film EL panel before the aging process, and performing the aging process using the flexible printed board. CONSTITUTION:Ends of plural signal circuits 23 are short-circuited to each other and a flexible printed board 22 is connected to an EL panel 10 in a condition of the ends being bent to part from the thin film EL panel 10 so that the short-circuited parts 24 can be easily removed later. Under this condition, the aging of the film EL panel 10 is performed while sending signals from a drive IC 22 via the signal circuits 23 to an electrode cluster. Here, because the multiple signal circuits 23 are short-circuited to each other, an identical signal can be applied to the entire electrode cluster so that effective aging can be performed.

9. 发明专利

JPH0230025B2 失效
公开(公告)号：JPH0230025B2
公开(公告)日：1990-07-04
申请号：JP7289087
申请日：1987-03-25
申请人： SHARP KK
发明人： ISAKA KINICHI , KISHISHITA HIROSHI , FUJIOKA YOSHIHIDE , KAMIIDE HISASHI , OOBA TOSHIHIRO
IPC分类号： H05B33/08 , G09G3/30

10. 发明专利

JPH02149889A DRIVING METHOD FOR DISPLAY DEVICE 失效
公开(公告)号：JPH02149889A
公开(公告)日：1990-06-08
申请号：JP30495688
申请日：1988-11-30
申请人： SHARP KK
发明人： OBA TOSHIHIRO , SAKAMOTO ATSUSHI , ISHIHATA YOSHISADA , KISHISHITA HIROSHI , KAMIIDE HISASHI
IPC分类号： H05B33/08 , G09G3/30 , H04N3/12 , H04N3/14
摘要： PURPOSE:To provide a function for converting the correspondence relation between gradations to be displayed and display data of one binary code signal according to N driving and P driving by inverting the logic of a binary code signal according to the polarity of a write voltage. CONSTITUTION:Scanning-side electrode Y1 - Ym arrayed on a display panel 6 are connected to a scanning-side driving circuit 7. Further, data-side electrodes X1 - Xn are connected to a data-side driving circuit 8. In this case, the binary code signal which is made to correspond to the respective gradations of a gradational display is used as the display data and the binary signal is applied as it is at the time of the N driving wherein the write voltage is minus, and used having its logic inverted at the time of the P driving wherein the write voltage is plus, so display data in the N driving and P driving are in opposite gradation relation. Consequently, a common gradational display is made in the N driving and P driving with one binary code signal.

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