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    • 3. 发明专利
    • Image display apparatus and method for driving the same
    • 图像显示装置及其驱动方法
    • JP2007188099A
    • 2007-07-26
    • JP2007037776
    • 2007-02-19
    • Sony Corpソニー株式会社
    • SEKIYA MITSUNOBUYUMOTO AKIRA
    • G09G3/30G09G3/20H01L51/50
    • Y02B20/36
    • PROBLEM TO BE SOLVED: To increase the degree of freedom in designing active elements inside a pixel to allow preferable designing and to freely set display brightness in a simple manner. SOLUTION: Writing of brightness information into each pixel PXL is performed by applying an electric signal corresponding to the brightness information to a data line Y while a scanning line X is selected. The brightness information written in each pixel is held by the pixel even after the scanning line X is placed into a non-selected state so that a light emitting element of each pixel can continue lighting with brightness corresponding to the held brightness information. An image display apparatus has a stopping control line Z which compulsorily extinguishes the light emitting elements of each of the pixels which are connected to the same scanning line X at least in a unit of a scanning line so that the light emitting elements are placed into an extinguished state from a lit state within a period of one scanning cycle after the brightness information is written in each pixel until new brightness information is written into each pixel subsequently. In this case, the duty ratio representing the ratio of lighting time in one scanning cycle is set to be equal to or below 50%. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了增加设计像素内的有源元件的自由度,以允许优选的设计并且以简单的方式自由地设置显示亮度。 解决方案:在选择扫描线X的同时,通过将对应于亮度信息的电信号施加到数据线Y来执行将亮度信息写入每个像素PXL。 即使在将扫描线X置于未选择状态之后,由像素保持写入每个像素的亮度信息,使得每个像素的发光元件能够以与所保持的亮度信息相对应的亮度继续点亮。 图像显示装置具有停止控制线Z,其强制地将至少以扫描线为单位连接到相同扫描线X的每个像素的发光元件熄灭,使得发光元件被放置在 在将亮度信息写入每个像素之后,在一个扫描周期的周期内从点亮状态熄灭直到新的亮度信息被随后写入每个像素。 在这种情况下,将一个扫描周期中的点亮时间的比率的占空比设定为等于或小于50%。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Pixel circuit, display device, and driving method of pixel circuit
    • 像素电路,显示设备和像素电路的驱动方法
    • JP2007003706A
    • 2007-01-11
    • JP2005182226
    • 2005-06-22
    • Sony Corpソニー株式会社
    • INO MASUMITSUYUMOTO AKIRAASANO SHINJINDA SEIICHIROFUJIMURA HIROSHIYAMAGUCHI MASANORIWATANABE KATSUHIDE
    • G09G3/30G09G3/20H01L51/50
    • PROBLEM TO BE SOLVED: To provide a pixel circuit that can prevent variance in luminance during high-luminance display without impairing signal write response during low-luminance display, and to provide a display device and a driving method of the pixel circuit. SOLUTION: The pixel circuit 101 includes a TFT 111 and an organic EL light emitting element 113 arranged in series between a power source potential line VCCL and a reference potential GND, a TFT 112 connected between a signal line SGL and the gate of the TFT 111, and a capacitor C111 connected between the gate of the TFT 111 and the power source potential line VCCL. A one-field period is provided with N (8 or 10) sub-field SF periods to perform N-bit (2 N gray scale) display, and a scan driver 104 generates signals of the N subfields SF1 to SFN; when the scan driver 104 preforms the selection, a high-level or low-level signal is applied from a data driver 103 to a signal line SGL and the signals are input to pixels in the timing. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够防止在高亮度显示期间亮度变化而不损害低亮度显示期间的信号写入响应的像素电路,并提供像素电路的显示装置和驱动方法。 解决方案:像素电路101包括串联布置在电源电位线VCCL和基准电位GND之间的TFT 111和有机EL发光元件113,连接在信号线SGL与栅极之间的TFT 112 TFT 111和连接在TFT111的栅极和电源电位线VCCL之间的电容器C111。 具有N(8或10)个子场SF周期以进行N位(2 N 灰度)显示的单场周期,扫描驱动器104产生N个子场的信号 SF1至SFN; 当扫描驱动器104进行选择时,从数据驱动器103向信号线SGL施加高电平或低电平信号,并且在定时中将信号输入到像素。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Current drive circuit and display device using same, and pixel circuit
    • 使用相同的电流驱动电路和显示器件以及像素电路
    • JP2006106786A
    • 2006-04-20
    • JP2005365583
    • 2005-12-19
    • Sony Corpソニー株式会社
    • YUMOTO AKIRA
    • G09G3/30G09G3/20G09G3/32H01L27/32
    • G09G3/3216G09G3/3241G09G3/325G09G3/3275G09G2300/0842G09G2300/0852G09G2300/0861G09G2300/0866G09G2310/0248G09G2310/0262G09G2320/0219G09G2320/0238H01L27/3244
    • PROBLEM TO BE SOLVED: To provide a current drive circuit capable of supplying a desired current to a light-emitting element in each pixel stably and accurately irrespective of the characteristic variations of active elements in the pixel, and a display and a pixel circuit. SOLUTION: Each pixel is composed of a receiving transistor TFT3 for receiving a signal current Iw from a data line data, a converting transistor TFT1 for temporarily converting the current level of the received signal current Iw to a voltage level and holding the voltage level, a transistor TFT4 for shorting the source and drain of the TFT1 during a writing period, and a drive part for converting the voltage signal held by the converting transistor TFT1 into a current signal and outputting a driving current. The drive part shares the converting transistor on a time-division basis with a conversion part, and disconnects the converting transistor TFT1 from a reception part after completing the conversion of the signal current for driving to supply the driving current through a channel while the held voltage level is applied to the gate of the converting transistor TFT1. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供能够稳定且准确地向每个像素中的发光元件提供期望电流的电流驱动电路,而与像素中的有源元件的特性变化无关,并且显示器和像素 电路。 解决方案:每个像素由用于从数据线数据接收信号电流Iw的接收晶体管TFT3,用于将接收信号电流Iw的电流电平临时转换为电压电平并保持电压的转换晶体管TFT1 用于在写入周期期间短路TFT1的源极和漏极的晶体管TFT4和用于将由转换晶体管TFT1保持的电压信号转换为电流信号并输出​​驱动电流的驱动部分。 驱动部分与转换部分分时共享转换晶体管,并且在完成用于驱动的​​信号电流的转换之后将转换晶体管TFT1与接收部分断开,以通过通道提供驱动电流,同时保持电压 电平施加到转换晶体管TFT1的栅极。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Image display apparatus
    • 图像显示设备
    • JP2008003544A
    • 2008-01-10
    • JP2006310864
    • 2006-11-17
    • Sony Corpソニー株式会社
    • ASANO SHINYAMASHITA JUNICHIYUMOTO AKIRAFUJIMURA HIROSHI
    • G09G3/30G09G3/20
    • G09G3/3233G09G3/2014G09G3/3266G09G2300/0819G09G2300/0842G09G2300/0852G09G2300/0861G09G2320/0233
    • PROBLEM TO BE SOLVED: To provide an image display apparatus capable of uniformly adjusting a light emitting period for each pixel row even when sampling out scanning or the like is performed. SOLUTION: A first scanner 3 is operated in response to a V clock 1 which is a clock signal that defines a transfer period which includes ordinary first transfer periods T1 and second transfer periods T2 which are longer than that and mixed in one field to supply first control signals sequentially in the first transfer periods T1 and the second transfer periods T2 which are mixed in that to respective first scanning lines VSCAN1. A second scanner 4 is operated in response to a V clock 2 synchronized with the V clock 1 for the first scanner 3 to sequentially supply second control signals to respective second scanning lines VSCAN2. At the time, the time width of the second control signals which defines the light emitting period varies for each row due to the mixture of the first transfer periods T1 and the second transfer periods T2. The second scanner 4 turns off the output of the respective second control signals in accordance with the second transfer periods T2 thereby to adjust the light emitting period against variation caused by the mixture of the second transfer periods T2. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供即使在进行扫描等采样时也能够均匀地调整每个像素行的发光周期的图像显示装置。 解决方案:响应于V时钟1操作第一扫描器3,V时钟1是限定传输周期的时钟信号,该时钟信号包括比那个长且在一个字段中混合的普通的第一传输周期T1和第二传送时段T2 以在与第一扫描线VSCAN1混合的第一传送时段T1和第二传送时段T2中顺序地提供第一控制信号。 第二扫描器4响应于与第一扫描器3的V时钟1同步的V时钟2而被操作,以顺序地向第二扫描线VSCAN2提供第二控制信号。 此时,由于第一传输周期T1和第二传送周期T2的混合,限定发光周期的第二控制信号的时间宽度对于每行而变化。 第二扫描器4根据第二传送周期T2关闭相应的第二控制信号的输出,从而调整发光周期与由第二传送周期T2的混合引起的变化。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Image display device
    • 图像显示设备
    • JP2007316454A
    • 2007-12-06
    • JP2006147536
    • 2006-05-29
    • Sony Corpソニー株式会社
    • YUMOTO AKIRA
    • G09G3/30G09G3/20H01L51/50
    • G09G5/18G09G3/32G09G3/3225G09G3/3233G09G2300/0404G09G2300/043G09G2300/0819G09G2300/0861G09G2300/0866G09G2310/0267G09G2320/0233G09G2320/043
    • PROBLEM TO BE SOLVED: To reduce the number of scanners while keeping a function of canceling variance in the threshold voltage Vth of a drive transistor. SOLUTION: A sampling transistor T1 of a pixel circuit 2 conducts according to a control signal supplied from a scanning line WSn during a sampling period and samples a video signal supplied from a signal line SL to a pixel capacitor Cs. A drive transistor Td supplies an output current according to the sampled video signal to a light emitting element OLED. The pixel circuit 2 has a transistor 2 for canceling a threshold voltage Vth to be connected to the gate of the drive transistor Td. The transistor T2 operates on/off according to a control signal applied to a scanning line WSn-k which is temporally preceding to the current line and preliminarily sets the gate of the drive transistor Td at a reference potential prior to sampling the video signal. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了减少扫描器的数量,同时保持驱动晶体管的阈值电压Vth的消除方差的功能。 解决方案:像素电路2的采样晶体管T1在采样周期期间根据从扫描线WSn提供的控制信号导通,并将从信号线SL提供的视频信号采样到像素电容器Cs。 驱动晶体管Td根据采样的视频信号将输出电流提供给发光元件OLED。 像素电路2具有用于抵消要连接到驱动晶体管Td的栅极的阈值电压Vth的晶体管2。 晶体管T2根据施加到时间上在当前行之前的扫描线WSn-k的控制信号进行运行,并且在对视频信号进行采样之前预先将驱动晶体管Td的栅极设置为参考电位。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Pixel circuit, display device, and method of driving pixel circuit
    • 像素电路,显示装置和驱动像素电路的方法
    • JP2007121889A
    • 2007-05-17
    • JP2005316815
    • 2005-10-31
    • Sony Corpソニー株式会社
    • JINDA SEIICHIROINO MASUMITSUYUMOTO AKIRAASANO SHIN
    • G09G3/30G09G3/20H01L51/50
    • PROBLEM TO BE SOLVED: To provide a pixel circuit, a display device, and a method of driving the pixel circuit which achieve stable and accurate supply of a current, having a desired value to light-emitting elements, despite the variance in the thresholds among active elements in the pixels and achieve display of high quality image as a result. SOLUTION: The pixel circuit includes a TFT 41 for driving, a TFT 46 having a prescribed threshold, a TFT 43 (a first switch) connected between a first node ND 41 and a third node ND 43, a TFT 44 (a second switch) connected between a data line DTL 41 and a second node ND 42, and a TFT 45 (a third switch) connected to the TFT 46. TFTs 45 and 46 are connected in series between the data line DLT 41 and the second node ND 42, and the third node ND 43, the TFT 41, and a light-emitting element 48 are connected in series between a first reference potential Vcc and a second reference potential Vss. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供像素电路,显示装置和驱动像素电路的方法,其实现了对发光元件具有期望值的电流的稳定和准确的供给,尽管在 像素中有效元素之间的阈值,从而实现高质量图像的显示。 < P>解决方案:像素电路包括用于驱动的​​TFT41,具有规定阈值的TFT46,连接在第一节点ND 41和第三节点ND 43之间的TFT 43(第一开关),TFT 44( 连接在数据线DTL 41和第二节点ND 42之间的TFT 45(第三开关)和TFT 45(第三开关)。TFT 45和46串联连接在数据线DLT 41和第二节点 ND 42和第三节点ND 43,TFT 41和发光元件48串联连接在第一参考电位Vcc和第二参考电位Vss之间。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Driving method of active matrix type display device
    • 主动矩阵型显示装置的驱动方法
    • JP2006285269A
    • 2006-10-19
    • JP2006148442
    • 2006-05-29
    • Sony Corpソニー株式会社
    • ASANO SHINYUMOTO AKIRA
    • G09G3/30G09G3/20H01L51/50
    • G09G2300/0852
    • PROBLEM TO BE SOLVED: To solve the problem that a long threshold voltage correction period can not be secured since a threshold voltage correction period and a data writing period need to be provided successively in one horizontal period when constitution wherein a fixed potential is supplied from a signal line in the threshold correction period and a data potential plus a fixed potential is supplied in the data writing period respectively is employed. SOLUTION: A 5th transistor 25 is connected between a power line 33 and a drain end of a 1st transistor 21 and the source voltage VCC3 of the power line 33 which is different from a signal line 13 is supplied as a fixed potential needed to correct the threshold voltage through the 5th transistor 25 to secure a period which is long enough as the threshold voltage correction period, thereby securely correcting variance in threshold voltage of a 2nd transistor 22 by pixels. COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:为了解决由于在一个水平周期中需要连续提供阈值电压校正周期和数据写入周期,因此当固定电位为 采用在阈值校正期间从信号线提供的数据电位和固定电位的数据写入时段。 解决方案:第五晶体管25连接在电源线33与第一晶体管21的漏极端之间,电源线33的不同于信号线13的源极电压VCC3被提供为需要的固定电位 以校正通过第五晶体管25的阈值电压以确保与阈值电压校正周期足够长的周期,由此可靠地校正第二晶体管22的阈值电压的变化。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Display device
    • 显示设备
    • JP2006054111A
    • 2006-02-23
    • JP2004235125
    • 2004-08-12
    • Sony Corpソニー株式会社
    • FUJIMURA HIROSHIINO MASUMITSUASANO SHINYUMOTO AKIRAIWASE YUICHI
    • H05B33/04G09F9/00G09F9/30H01L27/32H01L51/50
    • H05B33/04H01L27/3244H01L51/5246
    • PROBLEM TO BE SOLVED: To provide a display device capable of preventing degradation of an organic EL element due to diffusion of water remaining in the device, and thereby, with excellent long-term reliability.
      SOLUTION: The device, provided with a display region 3 made by arraying organic EL elements on a support substrate 2, and a peripheral region 4 made by providing a drive circuit of the organic EL elements on the support substrate 2 around the display region 3, has an organic insulating film 12 provided for covering a whole area on the support substrate 2 with the drive circuit formed. The organic insulating film 12 is separated into an inner periphery part 12a and an outer periphery part 12b by a separating groove 'a' with the organic insulating film 12 part removed at a position surrounding the display region 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种能够防止有机EL元件由于残留在器件中的水的扩散而劣化的显示装置,从而具有优异的长期可靠性。 解决方案:具有通过在支撑基板2上排列有机EL元件而制成的显示区域3的设备和通过在显示器上的支撑基板2上设置有机EL元件的驱动电路而制成的周边区域4 区域3具有形成有驱动电路的用于覆盖支撑基板2上的整个区域的有机绝缘膜12。 有机绝缘膜12通过分隔槽“a”分离成内周部分12a和外周部分12b,在围绕显示区域3的位置处除去有机绝缘膜12部分。 )2006年,日本特许厅和NCIPI