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11. 发明专利

JPH11218739A DRIVING CIRCUIT FOR ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH11218739A
公开(公告)日：1999-08-10
申请号：JP11164698
申请日：1998-04-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA MIKA , MINAMINO YUTAKA , KANEKO NAOMI , IDO MASUMI , TSUTSU HIROSHI , ADACHI KATSUMI
IPC分类号： G02F1/133 , G09G3/36 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To reduce cost, to eliminate the process for mounting a driving IC on an array substrate and to thin th thickness of a liquid crystal display(LCD) device by eliminating the driving IC from the components of the LCD device. SOLUTION: In an active matrix type LCD device driving circuit provided with a resistance division type digital/analog(D/A) conversion circuit and capable of amplifying analog output voltage outputted from th D/A conversion circuit by a signal amplification element and driving an LCD element by the amplified analog output voltage, a resistor element R is formed by a p-Si n+ layer on a array substrate of the LCD device and a switching element transistor(TR) and the signal amplification element are formed on the array substrate.

12. 发明专利

JPH09311665A DRIVING CIRCUIT OF LIQUID CRYSTAL DISPLAY APPARATUS 失效
公开(公告)号：JPH09311665A
公开(公告)日：1997-12-02
申请号：JP12661496
申请日：1996-05-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA MIKA , ADACHI KATSUMI
IPC分类号： G09G3/36
摘要： PROBLEM TO BE SOLVED: To lessen the electric consumption in an optimized way by providing shift resistors in N stages in total number divided into L blocks, shift resistors for shift clock masks in stages L, a means to mask a clock, and specifying the L value. SOLUTION: Corresponding to the cycle of clock signal MCLK, mask signals M(1)-M(L) are successively sent out from respective stages of shift resistor MSR for shift clock mask signals. Clock signals CLK for shift resistors SR in N stages are divided corresponding to the number L of the stages of the shift resistors MSR for shift clock mask signals, masked by respective mask signals M(1)-M(L), and sent to the shift resistor SR as clock signals LCLK (1)-LCLK(L). The number L is set to be an integer near the value m obtained from an equation m= √ (N /2), where √ stands for a cube root. Consequently, the electric power consumption of a driving circuit can be lessened to the minimum limit.

13. 发明专利

JP2589822B2 失效
公开(公告)号：JP2589822B2
公开(公告)日：1997-03-12
申请号：JP22354789
申请日：1989-08-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OOTANI AKINARI , ADACHI KATSUMI
IPC分类号： G02F1/133 , G09G3/36 , H04N5/66 , H04N9/12

14. 发明专利

JPH0923399A SIGNAL LINE DRIVING DEVICE FOR ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY PANEL 失效
公开(公告)号：JPH0923399A
公开(公告)日：1997-01-21
申请号：JP17361595
申请日：1995-07-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ADACHI KATSUMI
IPC分类号： G09G3/36 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide a side panel display on an active liquid crystal display panel of wide aspect without the time base processing of a video signal. SOLUTION: A signal line driving IC consists of a shift register 3, which takes the timing data signal of a data signal for video signal or a data signal for side panel as the input and transfers this input signal by the use of an image clock signal, and line sequence conversion means 4a, 4b, and 5 which sample the video signal or the side panel. At the time of projection of the video signal of 4:3 aspect ratio, the signal line driving circuit in the center part takes in the video signal in parallel with taking of the side panel signal into signal line driving circuits on both sides, thereby taking in all signals in the effective scanning period to realize the side panel display.

15. 发明专利

JPH07244469A ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY 失效
公开(公告)号：JPH07244469A
公开(公告)日：1995-09-19
申请号：JP3467994
申请日：1994-03-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ADACHI KATSUMI , MATSUNAMI MASAHITO , OTANI TOSHIYA , FURUBAYASHI YOSHINORI
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
摘要： PURPOSE:To realize reduction of power consumption at the time of standby of an active matrix type liquid crystal display used for a computer. CONSTITUTION:A signal line driving circuit is constituted of a shift register 15 which transfers a timing data signal S0 indicating a horizontal position of a screen with a picture clock signal S1, a line sequentiality converting means 16 which converts a picture signal S2 to a parallel picture output signal for line sequentiality, a mode switching means 18 of which one side of an input is connected to an output of the line sequentiality converting means 16 and the other side of an input is connected to a constant voltage source 17, and a transistor 20 for amplifying current as a current amplifier having a function switching magnitude of an output current, and electric power required for charging and discharging is reduced by switching the mode switching means 18 to the constant voltage source 17 at the time of standby, while switching an output current to a small current side.

16. 发明专利

JPH04221993A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH04221993A
公开(公告)日：1992-08-12
申请号：JP40575190
申请日：1990-12-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TSURUKI TAKAYUKI , ADACHI KATSUMI
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N5/66
摘要： PURPOSE:To reduce the operation frequencies by a divided driving circuit and to prevent a joint from being conspicuous when the divided driving is carried out. CONSTITUTION:Plural signal processing circuit 13 generating a signal for driving an image display part 11 with respect to an inputted image signal, and a driving circuit 12 driving the image display part which is divided into plural blocks for actually driving the image display part 11, are connected via a switching circuit 14 which can freely change the combination of the input/output of the circuits 12 and 13. When the combination is switched at very specific periods, for instance, at every one-horizontal periods, the position on a screen of a picture element driven with a driving signal processed by the signal processing circuit 13 is different at each one-line. Therefore, the differences of the properties of the signal processing circuit 13 are uniformized on the screen, so that the joint is not conspicuous at the time of the dividing.

17. 发明专利

JPH0430683A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH0430683A
公开(公告)日：1992-02-03
申请号：JP13504290
申请日：1990-05-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OTANI AKINARI , ADACHI KATSUMI
IPC分类号： G02F1/133 , G09G3/36 , H04N5/66
摘要： PURPOSE:To obtain a display with high quality in the moving picture display without complicated picture processing by revising the picture display for each field. CONSTITUTION:A liquid crystal drive signal is inputted to a horizontal scanning circuit 121 to input a control signal Gdel to a control signal Gd3l input terminal and to input an erasure signal Vdel to an erasure signal Vdel input terminal. When a signal Vgatel whose pulse width is a signal supply period Tsig is outputted in an odd number field, a TFT (thin film transistor) 103 of a 1st row of a scanning electrode X is turned on and a signal electrode signal Vs for the signal supply period Tsig is fed to a picture element electrode 105. When a signal Vgatel whose pulse width is a signal erasure period Tdel is outputted in an even number field, the TFT 103 of the 1st row of the scanning electrode X is turned on and the signal electrode signal Vs for the signal erasure period Tdel is fed to the picture element electrode 105 and the picture of the 1st row of the scanning electrode X is erased.

18. 发明专利

JPH0262518A LIQUID CRYSTAL IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH0262518A
公开(公告)日：1990-03-02
申请号：JP21401688
申请日：1988-08-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ADACHI KATSUMI
IPC分类号： H01L39/00 , G02F1/136 , G02F1/1368 , G09F9/00 , H01L27/12
摘要： PURPOSE:To realize a liquid crystal panel which has no brightness irregularity and is tolerant to light even when having a large image plane by forming a light shield layer of a superconducting material on a transparent substrate and using an MIS transistor (TR) which uses a hypocrystalline semiconductor as a switching element. CONSTITUTION:A picture element electrode 103, a common electrode 109, and the switching element 102 are formed on transparent electrodes 101 and 105 and a liquid crystal layer 104 is sandwiched between them to constitute the liquid crystal display device, where the light shield layer 112 is formed on the superconducting material on the transparent substrate 105. Ceramic made of Y, Ba, Cu, and O is used as the superconducting material and those materials are vapor-deposited on the transparent substrate 105 by sputtering, etc., to obtain the light shield layer 112 which is low in light transmissivity and reflectivity, thereby preventing the switching element 102 from deteriorating in characteristics owing to external light. The light shield material 112 is made of the superconducting material, so there is not problem as to the resistance value and an excellent image is obtained.

19. 发明专利

JPH01319094A MATRIX TYPE PLATE DISPLAY DEVICE 失效
公开(公告)号：JPH01319094A
公开(公告)日：1989-12-25
申请号：JP15073988
申请日：1988-06-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ADACHI KATSUMI
IPC分类号： G09G3/20 , H04N5/66
摘要： PURPOSE:To operate the title device with high-speed clocks by delaying the clocks in corresponding to the delay of a start pulse between signal line driving ICs. CONSTITUTION:Clocks become dull in waveform and, at the same time, are delayed by means of an LPF (low-pass filter) constituted of resistances 206 and 207 and capacitor 209 between signal driving IC 108 and 109. Therefore, the clock of the driving IC 109 delayed from the driving IC 108 by the LPF can catch a start pulse and the IC 109 can operates normally. When patterns of a clock wiring section 114 and electrode section 201 are changed, the characteristics of the LPF can be adjusted against the frequency of a used clock and characteristics of the ICs 108 and 109. Therefore, the signal line driving ICs can be operated with high-speed clocks.

20. 发明专利

JPS6161753B2 失效
公开(公告)号：JPS6161753B2
公开(公告)日：1986-12-26
申请号：JP4280281
申请日：1981-03-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ADACHI KATSUMI , MITSUDA KATSUMI
IPC分类号： H04N3/16 , H04N3/223 , H04N9/16

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