公开(公告)号：US09406258B2

公开(公告)日：2016-08-02

申请号：US14826282

申请日：2015-08-14

申请人： Sony Corporation

发明人： Junichi Yamashita ,  Takao Tanikame ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G2300/0408 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2360/147

摘要： A display device is disclosed. The display device includes: a pixel array unit and a driving unit which drives the pixel array unit. The pixel array unit includes rows of first scanning lines and second scanning lines, columns of signals, pixels in a matrix state arranged at portions where the scanning lines and the signal lines cross each other and power supply lines and ground lines supplying power to respective pixels. The driving unit includes a first scanner performing line-sequential scanning to pixels by each row by supplying a first control signal to each first scanning line sequentially, a second scanner supplying a second control signal to each second scanning line sequentially so as to correspond to the line-sequential scanning and a signal selector supplying a video signal to rows of signal lines so as to correspond to the line-sequential scanning.

公开(公告)号：US09208726B2

公开(公告)日：2015-12-08

申请号：US14301535

申请日：2014-06-11

申请人： Sony Corporation

发明人： Katsuhide Uchino ,  Junichi Yamashita

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/02 ,  G09G2310/06 ,  G09G2320/043 ,  G09G2330/028

摘要： A pixel circuit includes a drive transistor that has a gate connected to an input node and a source connected to an output node. The drive transistor supplies a driving current to an electrooptic element via the output node. A sampling transistor is connected between the input node and a signal line and samples an input signal from the signal line, which is retained in a retaining capacitance connected to the input node. The magnitude of the driving current is based on a value of the retained signal. The pixel circuit further includes a compensating circuit which detects a decrease in the driving current attendant on a secular change of the drive transistor from a side of the output node and feeds back a result of the detection to a side of the input node to compensate for the decrease.

摘要翻译： 像素电路包括具有连接到输入节点的栅极和连接到输出节点的源极的驱动晶体管。 驱动晶体管经由输出节点向电光元件提供驱动电流。 采样晶体管连接在输入节点和信号线之间，并对来自信号线的输入信号进行采样，该输入信号保持在连接到输入节点的保持电容中。 驱动电流的大小取决于保持信号的值。 像素电路还包括补偿电路，其检测驱动晶体管从输出节点侧的长期变化引起的驱动电流的减小，并将检测结果反馈到输入节点的一侧以补偿 减少。

公开(公告)号：US20150243205A1

公开(公告)日：2015-08-27

申请号：US14696993

申请日：2015-04-27

申请人： Sony Corporation

发明人： Junichi Yamashita ,  Takao Tanikame ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G2300/0408 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2360/147

摘要： A display device is disclosed. The display device includes: a pixel array unit and a driving unit which drives the pixel array unit. The pixel array unit includes rows of first scanning lines and second scanning lines, columns of signals, pixels in a matrix state arranged at portions where the scanning lines and the signal lines cross each other and power supply lines and ground lines supplying power to respective pixels. The driving unit includes a first scanner performing line-sequential scanning to pixels by each row by supplying a first control signal to each first scanning line sequentially, a second scanner supplying a second control signal to each second scanning line sequentially so as to correspond to the line-sequential scanning and a signal selector supplying a video signal to rows of signal lines so as to correspond to the line-sequential scanning.

摘要翻译： 公开了一种显示装置。 显示装置包括：像素阵列单元和驱动像素阵列单元的驱动单元。 像素阵列单元包括第一扫描线和第二扫描线的行，信号列，布置在扫描线和信号线彼此交叉的部分处的矩阵状态的像素，以及向各个像素供电的电源线和地线 。 所述驱动单元包括：第一扫描器，通过向每个第一扫描行依次提供第一控制信号，按顺序向每一行执行对每个行的像素的行顺序扫描，第二扫描器依次向每个第二扫描行提供第二控制信号，以对应于 行顺序扫描和信号选择器，将视频信号提供给信号行的行以便对应于行顺序扫描。

公开(公告)号：US20150235592A1

公开(公告)日：2015-08-20

申请号：US14704219

申请日：2015-05-05

申请人： Sony Corporation

发明人： Junichi Yamashita ,  Yusuke Onoyama ,  Tetsuo Minami ,  Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G5/18

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  H01L27/0688 ,  H01L27/3225 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3255 ,  H01L27/3262 ,  H01L27/3276

摘要： A display device includes: a plurality of light-emitting elements, each light-emitting element having a light-emitting unit and a driving circuit for driving the light-emitting unit. The driving circuit at least includes (A) a drive transistor having source/drain regions, a channel forming region, and a gate electrode, (B) a video signal write transistor having source/drain regions, a channel forming region, and a gate electrode, and (C) a capacitive unit. In the drive transistor, (A-1) one of the source/drain regions is connected to the corresponding current supply line, (A-2) the other region of the source/drain regions is connected to the light-emitting unit and connected to one end of the capacitive unit, and forms a second node, and (A-3) the gate electrode is connected to the other region of the source/drain regions of the video signal write transistor and connected to the other end of the capacitive unit, and forms a first node.

摘要翻译： 显示装置包括：多个发光元件，每个发光元件具有发光单元和用于驱动发光单元的驱动电路。 驱动电路至少包括（A）具有源极/漏极区域的驱动晶体管，沟道形成区域和栅极电极，（B）具有源极/漏极区域的视频信号写入晶体管，沟道形成区域和栅极 电极，（C）电容单元。 在驱动晶体管中，（A-1）源极/漏极区域之一连接到相应的电流源线（A-2），源极/漏极区域的另一个区域连接到发光单元并连接 并且形成第二节点，并且（A-3）栅电极连接到视频信号写入晶体管的源极/漏极区域的另一个区域，并连接到电容器的另一端 单元，并形成第一个节点。

公开(公告)号：US20150042635A1

公开(公告)日：2015-02-12

申请号：US14326992

申请日：2014-07-09

申请人： Sony Corporation

发明人： Kei Kimura ,  Yusuke Onoyama ,  Naobumi Toyomura ,  Junichi Yamashita

IPC分类号： G09G3/32

CPC分类号： G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0809 ,  G09G2320/045

摘要： Provided is a display device including a pixel array unit that is made by arranging a drive transistor to drive a light emitting unit, a sampling transistor to sample a signal voltage, and a pixel circuit having a storage capacitor to store the signal voltage which is written by sampling with the sampling transistor, and a drive unit that makes a gate node and a source node of the drive transistor be in a floating state up to performing writing of the signal voltage with the sampling transistor, after writing an initialization voltage in the gate node when the source node of the drive transistor is in a non-floating state.

摘要翻译： 提供了一种显示装置，其包括通过布置驱动晶体管来驱动发光单元，采样晶体管来采样信号电压而形成的像素阵列单元，以及具有存储电容器的像素电路，用于存储写入的信号电压 通过采样晶体管进行采样，以及驱动单元，其使驱动晶体管的栅极节点和源极节点处于浮置状态，直到在栅极中写入初始化电压以执行与采样晶体管的信号电压的写入 当驱动晶体管的源极节点处于非浮动状态时，

公开(公告)号：US20150009201A1

公开(公告)日：2015-01-08

申请号：US14289259

申请日：2014-05-28

申请人： SONY CORPORATION

发明人： Yusuke Onoyama ,  Junichi Yamashita ,  Naobumi Toyomura

IPC分类号： G09G3/36

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0238 ,  G09G2320/045

摘要： A display device includes a pixel array unit formed by disposing pixel circuits having a P-channel type drive transistor that drives a light-emitting unit, a sampling transistor that applies a signal voltage, a light emission control transistor that controls emission/non-emission of the light-emitting unit, a storage capacitor that is connected between a gate electrode and a source electrode of the drive transistor and an auxiliary capacitor that is connected to the source electrode, and a drive unit that, during threshold correction, respectively applies a first voltage and a second voltage to the source electrode of the drive transistor and the gate electrode thereof, the difference between the first voltage and the second voltage being less than a threshold voltage of the drive transistor, and subsequently performs driving that applies a standard voltage used in threshold correction to the gate electrode when the source electrode is in a floating state.

摘要翻译： 显示装置包括：像素阵列单元，其通过配置具有驱动发光单元的P沟道型驱动晶体管的像素电路，施加信号电压的采样晶体管，控制发光/不发光的发光控制晶体管 所述存储电容器连接在所述驱动晶体管的栅电极和源电极之间，以及连接到所述源电极的辅助电容器，以及驱动单元，其在阈值校正期间分别施加 第一电压和第二电压到驱动晶体管的源电极及其栅电极，第一电压和第二电压之间的差小于驱动晶体管的阈值电压，然后进行施加标准电压的驱动 当源极处于浮置状态时，用于栅极电极的阈值校正。

公开(公告)号：US08907875B1

公开(公告)日：2014-12-09

申请号：US14459454

申请日：2014-08-14

申请人： Sony Corporation

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G5/18 ,  G09G3/3233 ,  G09G3/3266 ,  G09G5/10 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2320/043 ,  G09G2320/045

摘要： The invention provides a pixel circuit that can cancel the influence of the mobility of a drive transistor. A drive transistor supplies a light-emitting element with an output current dependent upon an input voltage. The light-emitting element emits light with a luminance dependent upon a video signal in response to the output current supplied from the drive transistor. The pixel circuit includes a correction unit that corrects the input voltage held by a capacitive part in order to cancel the dependence of the output current on the carrier mobility.

公开(公告)号：US20140340288A1

公开(公告)日：2014-11-20

申请号：US14446694

申请日：2014-07-30

申请人： SONY CORPORATION

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/043

摘要： A display device includes: a pixel array unit with pixel circuits disposed in matrix form, the pixel circuit including a driving transistor, an electro-optic element, a storage-capacitor, and a sampling transistor, with the electro-optic element emitting light by generating a driving current based on information stored in the storage-capacitor at the driving transistor to be applied to the electro-optic element; and a control unit, of which the output stage includes a buffer transistor, to output a pulse signal for driving the pixel array unit from the buffer transistor; wherein the pixel array unit and the control unit are formed with long laser beam irradiation to be scanned in the vertical direction; and with the control unit, buffer transistors for outputting a pulse signal for sampling to an input video signal to each signal line are arrayed in a column in the longitudinal direction of the laser beam irradiation.

摘要翻译： 显示装置包括：像素阵列单元，具有以矩阵形式设置的像素电路，像素电路包括驱动晶体管，电光元件，存储电容器和采样晶体管，电光元件通过 基于存储在驱动晶体管的存储电容器中的信息产生驱动电流以施加到电光元件; 以及控制单元，其输出级包括缓冲晶体管，以从缓冲晶体管输出用于驱动像素阵列单元的脉冲信号; 其中像素阵列单元和控制单元形成为具有在垂直方向上被扫描的长激光束照射; 并且利用控制单元，在激光束照射的纵向方向上的列中排列用于向每个信号线输出用于采样到输入视频信号的脉冲信号的缓冲晶体管。

公开(公告)号：US08842060B2

公开(公告)日：2014-09-23

申请号：US13955671

申请日：2013-07-31

申请人： Sony Corporation

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/043

摘要： A display device includes: a pixel array unit with pixel circuits disposed in matrix form, the pixel circuit including a driving transistor, an electro-optic element, a storage-capacitor, and a sampling transistor, with the electro-optic element emitting light by generating a driving current based on information stored in the storage-capacitor at the driving transistor to be applied to the electro-optic element; and a control unit, of which the output stage includes a buffer transistor, to output a pulse signal for driving the pixel array unit from the buffer transistor; wherein the pixel array unit and the control unit are formed with long laser beam irradiation to be scanned in the vertical direction; and with the control unit, buffer transistors for outputting a pulse signal for sampling to an input video signal to each signal line are arrayed in a column in the longitudinal direction of the laser beam irradiation.

摘要翻译： 显示装置包括：像素阵列单元，具有以矩阵形式设置的像素电路，像素电路包括驱动晶体管，电光元件，存储电容器和采样晶体管，电光元件通过 基于存储在驱动晶体管的存储电容器中的信息产生驱动电流以施加到电光元件; 以及控制单元，其输出级包括缓冲晶体管，以从缓冲晶体管输出用于驱动像素阵列单元的脉冲信号; 其中像素阵列单元和控制单元形成为具有在垂直方向上被扫描的长激光束照射; 并且利用控制单元，在激光束照射的纵向方向上的列中排列用于向每个信号线输出用于采样到输入视频信号的脉冲信号的缓冲晶体管。

公开(公告)号：US20140247204A1

公开(公告)日：2014-09-04

申请号：US14279936

申请日：2014-05-16

申请人： Sony Corporation

发明人： Katsuhide Uchino ,  Junichi Yamashita ,  Tetsuro Yamamoto

IPC分类号： G09G3/34 ,  G09G3/36 ,  H05B33/08

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3258 ,  G09G3/3426 ,  G09G3/36 ,  G09G3/3648 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  H05B33/0896

摘要： A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT 111 as a drive transistor is connected to an anode of a light emitting element 114, a drain is connected to a power source potential VCC, a capacitor C111 is connected between a gate and source of the TFT 111, and a source potential of the TFT 111 is connected to a fixed potential through a TFT 113 as a switching transistor.

摘要翻译： 一种像素电路，显示装置和驱动像素电路的方法，即使随着发光元件的电流 - 电压特性的改变，也能够随着亮度的降低而使源极跟随器输出不发生劣化，从而能够使源极跟随器电路 n沟道晶体管，并且能够使用n沟道晶体管作为EL驱动晶体管，同时使用电流阳极 - 阴极电极，其中作为驱动晶体管的TFT 111的源极连接到发光元件114的阳极， 漏极连接到电源电位VCC，电容器C111连接在TFT 111的栅极和源极之间，TFT 111的源极电位通过作为开关晶体管的TFT 113连接到固定电位。