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21.发明公开DA CONVERTING CIRCUIT, DISPLAY USING THE SAME, AND MOBILE TERMINAL HAVING THE DISPLAY 审中-公开DA-UMSETZERSCHALTUNG，ANZEIGE DAMIT UND MOBILESENDGERÄTMIT DER ANZEIGE
公开(公告)号：EP1408480A4
公开(公告)日：2006-01-25
申请号：EP02741411
申请日：2002-07-03
Applicant: SONY CORP
Inventor： KIDA YOSHITOSHI , NAKAJIMA YOSHIHARU , MAEKAWA TOSHIKAZU
CPC classification number: G09G3/2011 , G09G3/2018 , G09G3/2081 , G09G3/30 , G09G3/3688 , G09G2310/027 , H03M1/68 , H03M1/687 , H03M1/76 , H03M1/765
Abstract: A DA converting circuit adaptable to multi-level gradation by reducing the circuit scale. The reference voltage selection DA converting circuit for converting 4-bit digital data into an analog signal having 16 voltage values V1 to V16. A reference voltage generating circuit (11) generates four reference voltages Vref1 to Vref4 each having four time-series voltage values. A selection signal generating circuit (12) generates a selection signal according to the low-order two bits of the digital data. A selecting circuit (13) selects one of the four voltages of the reference voltages Vref1 to Vref4 in time-division manner on the basis of the selection signal so as to output the analog signal of the selected voltage value to an output line (15).
Abstract translation: 根据本发明的D / A转换器电路允许通过减小电路尺寸来适应多层次。 将4位数字数据转换为具有16个电压值V1至V16的模拟信号的参考电压选择型D / A转换器电路在参考电压产生电路（11）中产生具有四个电压的四个参考电压Vref1至Vref4 值，并且基于数字数据的低位2位在选择信号生成电路（12）中产生选择信号。 选择电路（13）通过基于该选择信号分配参考电压Vref1〜Vref4的四个电压值中的一个来选择，并将所选择的电压值的模拟信号输出到输出线（15）。
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公开(公告)号：EP1426913A4
公开(公告)日：2005-04-20
申请号：EP02772843
申请日：2002-09-10
Applicant: SONY CORP
Inventor： INO MASUMITSU , OCHIAI MASAHIRO , YAMAGUCHI HIDEMASA , MAEKAWA TOSHIKAZU
CPC classification number: G02B6/0068 , B60K35/00 , B60K2350/203 , B60K2350/206 , G01C21/265 , G01C21/3626 , G02B6/0031 , G02B6/0038 , G02B6/005 , G02B6/0051 , G02B6/0053 , G02B6/0055 , G02B6/0071 , G02F1/1323 , G02F1/133615
Abstract: A car-mounted display such that the visibility of the displayed image from the driver’s seat and the front passenger’s seat is improved and the reflection of the displayed image in the front door windows is eliminated and a car navigation system using the display as a monitor are disclosed. When a liquid crystal display is installed at the center of the dashboard, the variation of the luminance or contrast is so set as to be below about 20 dB (ten times) in the range up to about 40° to the left and right from the center. Therefore, the visibility from both the driver’s seat and the front passenger’s seat is made most suitable. The luminance or contrast is so set as to decrease by -20 dB or more in the range over about 40° from the center to the left and right.
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公开(公告)号：EP0105386A4
公开(公告)日：1984-09-14
申请号：EP83901229
申请日：1983-04-16
Applicant: SONY CORP
Inventor： SONEDA MITSUO , MAEKAWA TOSHIKAZU , OHTSU KOJI
IPC: H01L27/146 , H04N5/374 , H04N5/30
CPC classification number: H01L27/14643 , H04N5/374
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公开(公告)号：NO326879B1
公开(公告)日：2009-03-09
申请号：NO20021396
申请日：2002-03-20
Applicant: SONY CORP
Inventor： NAKAJIMA YOSHIHARU , MAEKAWA TOSHIKAZU , KIDA YOSHITOSHI , GOTO NAOSHI , KATAOKA HIDEO
IPC: G02F1/13 , G02F1/1362 , G09G3/00 , G09G3/36
Abstract: A liquid crystal display panel 1, to which an external horizontal drive circuit is connected in a TAB, COG, or other form, capable of performing aging by a substrate alone when image display is possible by connecting the external drive circuit, comprising an active matrix display area 2, a vertical drive circuit 4, and a horizontal aging circuit 5 for supplying signals to a plurality of source lines at one time provided on a substrate 3. Also, a medium- to small-sized active matrix type liquid crystal display apparatus used for a PDA etc. able to be produced at a high quality and a low cost without using a time sharing driving method and provided with a horizontal drive circuit as an external circuit, wherein a vertical drive circuit is formed integrally with a liquid crystal display area on a glass substrate by using low temperature PolySi TFTs, a horizontal drive circuit is connected to a liquid crystal display panel substrate by COG, and output terminals of a driver IC constituting the horizontal drive circuit and source lines Ls are in a one-to-one correspondence.
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公开(公告)号：SG136016A1
公开(公告)日：2007-10-29
申请号：SG2006022115
申请日：2003-05-30
Applicant: SONY CORP
Inventor： NAKAJIMA YOSHIHARU , KIDA YOSHITOSHI , MAEKAWA TOSHIKAZU
IPC: G02F1/133 , G09G3/20 , G09G3/30 , G09G3/36 , H03F3/34 , H03F3/50 , H03F3/68 , H03F3/72 , H03M1/74
Abstract: An analog buffer circuit which has small input and output offsets and reduced power consumption even if it is formed on an insulating substrate by TFTs, a display device which uses the analog buffer circuit as a peripheral driving circuit for a display unit, and a portable terminal in which the display device is provided as a screen display unit are provided. By performing offset detection on a source follower in such a manner that, for example, two capacitors Cn1 and Cn2 are connected to the gate of a NMOS transistor Qn11 as a source follower, and conduction/nonconduction control of switches Sn1 to Sn5 are performed, if needed, and by sequentially canceling the detected offsets, a final offset voltage is sufficiently reduced and high precision offset cancellation is realized.
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Patent Agency Ranking
公开(公告)号：DE69626713D1
公开(公告)日：2003-04-24
申请号：DE69626713
申请日：1996-04-10
Applicant: SONY CORP
Inventor： UCHINO KATSUHIDE , MAEKAWA TOSHIKAZU
Abstract: An active matrix display device comprising row gate lines, column signal lines and matrix pixels disposed at intersections of the gate and signal lines. The display device also includes a V shift register for line-sequentially scanning the gate lines and selecting pixels of one row during each horizontal scanning period, and a horizontal scanning circuit for sequentially sampling an actual video signal to the signal lines within one horizontal scanning period and writing the sampled actual video signal dot-sequentially in the pixels of one row. A precharge means is included as a characteristic requisite, wherein a first precharge signal is supplied simultaneously to the entire signal lines during a blanking period which precedes the horizontal scanning period, and further a second precharge signal is supplied sequentially to the signal lines prior to the step of sequentially sampling the actual video signal to the signal lines during each horizontal scanning period. This device is capable of preventing potential fluctuation that may otherwise be caused on a signal line by dot-sequential driving.
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公开(公告)号：NO20015907A
公开(公告)日：2002-01-31
申请号：NO20015907
申请日：2001-12-03
Applicant: SONY CORP
Inventor： NAKAJIMA YOSHIHARU , MAEKAWA TOSHIKAZU
CPC classification number: G09G3/3688 , G09G2310/027 , G09G2310/0281 , G09G2310/0289 , G09G2310/0294 , G09G2310/04 , G09G2310/08 , G09G2330/021 , G09G2330/022
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公开(公告)号：SG67340A1
公开(公告)日：1999-09-21
申请号：SG1996007822
申请日：1996-04-09
Applicant: SONY CORP
Inventor： UCHINO KATSUHIDE , MAEKAWA TOSHIKAZU , NAKAJIMA YOSHIHARU , TSUBOTA HIROYOSHI
Abstract: The invention provide a display apparatus of a plural pixel simultaneous driving system wherein sample and hold noise included in a video signal is removed before the video signal is supplied to a display panel (11). A video signal processing circuit operates in response to a timing signal (P S/H) supplied from an external timing signal source, and delays an input video signal (Vsigin) supplied thereto from an external video signal source to produce an output video signal (V S/H). The video signal processing circuit includes a first sample and hold circuit (3), a second sample and hold circuit (4) and a differential circuit (5). The first sample and hold circuit repetitively samples and holds the input video signal in response to the timing signal. The second sample and hold circuit repetitively samples and holds a predetermined reference signal (Vref) in response to the same timing signal. The differential circuit differentially processes the input video signal after it has been sampled and held and the reference signal after it has been sampled and held to produce an output video signal from which sample and hold noise synchronized with the timing signal has been removed.
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公开(公告)号：DE69416041T2
公开(公告)日：1999-08-05
申请号：DE69416041
申请日：1994-06-29
Applicant: SONY CORP
Inventor： MAEKAWA TOSHIKAZU
Abstract: An active matrix display device is disclosed which realizes changing over between a wide display and a normal display with a simple construction. The active matrix display device includes picture elements disposed in rows and columns on a horizontally elongated screen. A gate line is connected to each picture element row while a data line is connected to each picture element column. A signal line for supplying a video signal and data lines are connected by way of sampling switches. A horizontal shift register controls sequential opening and closing operations of the sampling switches. The picture element columns of the horizontally elongated screen are divided into a predetermined area allocated to a normal display and a pair of expansion areas included in a wide display. The horizontal shift register is divided into a predetermined stage section corresponding to the predetermined area and expansion stage sections corresponding to the expansion areas. Upon wide display, the predetermined and expansion stage sections of the horizontal shift register are interconnected serially into an integrated condition, but upon normal display, the expansion stage sections are disconnected from the predetermined stage section.
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公开(公告)号：DE69314507D1
公开(公告)日：1997-11-20
申请号：DE69314507
申请日：1993-01-28
Applicant: SONY CORP
Inventor： MAEKAWA TOSHIKAZU
Abstract: A horizontal driver circuit comprising a shift register for generating horizontal sampling pulses sequentially; and a fixed pattern eliminating circuit, associated with the shift register, for providing a non-overlap time of the horizontal sampling pulses between an Nth stage and an Mth stage posterior thereto. The Mth stage horizontal sampling pulse has a rise whose phase is the same as that of a fall of the Nth stage horizontal sampling pulse. The fixed pattern eliminating circuit comprises means for controlling the rise of the horizontal sampling pulse of the Mth stage by the fall of the horizontal sampling pulse of the Nth stage. The horizontal driver circuit is applicable to a two-dimensional addressing device and a liquid crystal display device to eliminate a fault of vertical streaks on a displayed image.
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