公开(公告)号：US10986304B2

公开(公告)日：2021-04-20

申请号：US12588758

申请日：2009-10-27

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/3233 ,  H04N5/70 ,  H01L27/32

摘要： A display device includes: a panel in which plural pixels that emit lights according to a video signal are sectioned into plural areas; a light reception sensor that is arranged in each of the areas and outputs a light reception signal according to light emission luminance; and signal processing means. The area includes first and second pixel groups including at least one pixel and plural pixels other than the first pixel group, respectively. The signal processing means includes arithmetic means for outputting an arithmetic signal according to arithmetic operation of an offset value and a light reception value; converting means for outputting digital data according to the arithmetic signal; and correcting means for correcting the video signal according to the digital data and supplying the corrected video signal to the first pixel group.

公开(公告)号：US09711082B2

公开(公告)日：2017-07-18

申请号：US12923878

申请日：2010-10-13

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819

摘要： A display apparatus includes: a pixel array including pixel circuits arranged in a matrix form, in which each pixel circuit has a light-emitting device, a drive transistor applying a current corresponding to a gate-source voltage to the light-emitting device, a sampling transistor inputting a voltage supplied from a signal line to a gate of the drive transistor, and a storage capacitor connected between the gate and source of the drive transistor so as to store a threshold voltage of the drive transistor and an input video signal voltage; a signal selector that supplies a reference voltage and the video signal voltage to signal lines arranged in columns on the pixel array in horizontal periods corresponding to the number of horizontal lines in one unit when the horizontal lines of the respective pixel circuits of the pixel array are grouped as one unit; and a scanner that applies a pulse to control lines arranged in rows on the pixel array so as to control the sampling transistor of the pixel circuit.

公开(公告)号：US09153169B2

公开(公告)日：2015-10-06

申请号：US12314313

申请日：2008-12-08

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/043

摘要： An image display apparatus includes a pixel array section and a drive section configured to drive the pixel array section. The pixel array section is a pixel-circuit matrix with pixel circuits each serving as a matrix element. The drive section has at least a write scanner for supplying the control signal to each of the scan lines in order to carry out a sequential scanning operation on the scan lines for every field and a signal selector for supplying a video signal to each of the signal lines with a timing adjusted to the sequential scanning operation. Each of the pixel circuits employs at least a sampling transistor, a drive transistor, a signal holding capacitor and a light emitting device.

公开(公告)号：US08982016B2

公开(公告)日：2015-03-17

申请号：US12149596

申请日：2008-05-05

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2320/043

摘要： Disclosed herein is a display device including: a pixel array unit; and a driving unit; wherein the pixel array unit includes first scanning lines and second scanning lines in a form of rows, signal lines in a form of columns, and pixels in a form of a matrix, the pixels being disposed at parts where the first scanning lines and the signal lines intersect each other, each pixel includes a drive transistor of an N-channel type, a sampling transistor, a switching transistor, a retaining capacitance, and a light emitting element, the driving unit includes a write scanner for sequentially supplying a control signal to each first scanning line, a drive scanner for sequentially supplying a control signal to each second scanning line, and a signal selector for alternately supplying a signal potential as a video signal and a predetermined reference potential to each signal line.

摘要翻译： 本文公开了一种显示装置，包括：像素阵列单元; 和驱动单元; 其中所述像素阵列单元包括行的形式的第一扫描线和第二扫描线，列的形式的信号线和矩阵形式的像素，所述像素被布置在所述第一扫描线和所述信号 线彼此相交，每个像素包括N沟道型驱动晶体管，采样晶体管，开关晶体管，保持电容和发光元件，驱动单元包括写扫描器，用于将控制信号顺序地提供给 每个第一扫描线，用于顺序地向每个第二扫描线提供控制信号的驱动扫描器，以及用于将信号电位交替地提供给每个信号线的视频信号和预定参考电位的信号选择器。

公开(公告)号：US08913091B2

公开(公告)日：2014-12-16

申请号：US13145604

申请日：2009-09-25

申请人： Yukihito Iida ,  Takayuki Taneda ,  Katsuhide Uchino

发明人： Yukihito Iida ,  Takayuki Taneda ,  Katsuhide Uchino

IPC分类号： G09G5/10 ,  G06F3/038 ,  G09G5/00 ,  G09G3/36 ,  G09G3/32 ,  H01J9/50 ,  H01L27/32

CPC分类号： H01L27/3276 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0814 ,  G09G2330/08 ,  H01L51/56 ,  H01L2251/5392 ,  H01L2251/568

摘要： The present invention relates to an image display device and a method for repairing a short circuit failure. The present invention is applicable to, for example, an active matrix type image display device using an organic EL device, and a short circuit location between wiring patterns is able to be repaired. In a scanning line WSL or a signal line DTL, a bypass wiring pattern BP for bypassing a region where the signal line DTL and the scanning line WSL intersect with each other is provided. By using the bypass wiring pattern BP, a short circuit location between wiring patterns is repaired.

摘要翻译： 本发明涉及图像显示装置和修复短路故障的方法。 本发明可应用于例如使用有机EL器件的有源矩阵型图像显示装置，并且能够修复布线图案之间的短路位置。 在扫描线WSL或信号线DTL中，设置用于绕过信号线DTL和扫描线WSL彼此相交的区域的旁路布线图案BP。 通过使用旁路布线图案BP，修复布线图案之间的短路位置。

公开(公告)号：US08896503B2

公开(公告)日：2014-11-25

申请号：US12458880

申请日：2009-07-27

申请人： Tomoaki Handa ,  Junichi Yamashita ,  Katsuhide Uchino

发明人： Tomoaki Handa ,  Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0218

摘要： The present invention sets power supply drive signals DS[1] and DS[2] at a power supply voltage Vcc in a timesharing for odd lines and their subsequent even lines and sets a write signal WS to correspond to the time division setting, thereby sharing a scan line of the write signal WS between the odd lines and the subsequent even lines.

摘要翻译： 本发明以奇数行及其后续偶数行的分时针对电源电压Vcc设置电源驱动信号DS [1]和DS [2]，并将写信号WS设置为对应于时分设置，从而共享 奇数行和后续偶数行之间的写入信号WS的扫描线。

公开(公告)号：US08896502B2

公开(公告)日：2014-11-25

申请号：US12149867

申请日：2008-05-09

申请人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

发明人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0223

摘要： A display device includes a display unit, a horizontal drive circuit, and a vertical drive circuit, the display unit including pixels in a matrix formation, as well as respective signal lines and scan lines via which the drive circuits drive the pixels. Each pixel includes a light-emitting element, a hold capacitor, a write transistor, and a drive transistor. Mobility fluctuations in the drive transistor are compensated for by successively setting the voltage of the signal line to an intermediate voltage and to a tone voltage. In addition, the intermediate voltage is varied in accordance with the tone voltage as well as with the distance from the input terminal of a write signal to a respective pixel. The device thereby compensates for mobility fluctuations in the drive transistor and prevents shading due to irregularities in the waveform of the write signal.

摘要翻译： 显示装置包括显示单元，水平驱动电路和垂直驱动电路，所述显示单元包括矩阵结构中的像素以及驱动电路驱动像素的相应信号线和扫描线。 每个像素包括发光元件，保持电容器，写入晶体管和驱动晶体管。 通过将信号线的电压连续地设定为中间电压和音调电压来补偿驱动晶体管的移动性波动。 此外，中间电压根据音调电压以及与写入信号的输入端子到相应像素的距离而变化。 因此，该装置补偿驱动晶体管中的迁移率波动，并且防止由于写入信号的波形中的不规则引起的阴影。

公开(公告)号：US08884852B2

公开(公告)日：2014-11-11

申请号：US12662175

申请日：2010-04-05

申请人： Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G5/00 ,  G06F3/038 ,  G09G5/10 ,  G09G3/32

CPC分类号： G09G3/3241 ,  G09G3/3233 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2310/0262

摘要： Disclosed herein is a display device including: a pixel circuit for generating a signal value for display by synthesizing signal values input within one horizontal period, and making display at a gradation corresponding to the signal value for display; a signal line disposed in a form of a column on a pixel array where the pixel circuit is arranged in a form of a matrix; a scanning line disposed in a form of a row on the pixel array; a signal line driving section configured to output signal values as a signal value to be supplied to each pixel circuit to the signal line within one horizontal period; and a scanning line driving section configured to sequentially introduce the signal values within one horizontal period, the signal values being generated in the signal line, into the pixel circuit in each row by driving the scanning line.

摘要翻译： 这里公开了一种显示装置，包括：像素电路，用于通过合成在一个水平周期内输入的信号值来产生用于显示的信号值，并且以与用于显示的信号值相对应的灰度显示; 在像素阵列上以列的形式设置的信号线，其中像素电路以矩阵的形式布置; 在像素阵列上以行的形式布置的扫描线; 信号线驱动部，被配置为在一个水平周期内将信号值作为要提供给每个像素电路的信号值输出到所述信号线; 以及扫描线驱动部，被配置为通过驱动扫描线，将在信号线中生成的信号值的一个水平周期内的信号值顺序地引入到每行的像素电路中。

公开(公告)号：US08872867B2

公开(公告)日：2014-10-28

申请号：US13323380

申请日：2011-12-12

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G5/10 ,  G06F3/038 ,  G09G5/00 ,  G09G3/32

CPC分类号： G09G3/32 ,  G09G2300/0413 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2360/145

摘要： A signal processing device measures an actual luminance of a light-emitting device by setting levels of gradation values indicating the degree of light emission to a pixel circuit having the light-emitting device to generate measurement information. The device also calculates gradation deterioration characteristics based on the measurement information and the relationship between a gradation value and a luminance value when the pixel circuit is in a correction reference state. A deterioration value calculation calculates a conversion efficiency deterioration value of conversion efficiency for the light-emitting device to convert a driving current supplied for a gradation value into a luminance to generate conversion efficiency deterioration characteristic information. Finally, the device calculates current amount deterioration value that calculates a current amount deterioration value regarding deterioration of a driving current of the pixel circuit based on the gradation deterioration characteristic to generate current amount deterioration characteristic information of the prescribed pixel circuit.

摘要翻译： 信号处理装置通过将表示发光度的灰度值的等级设定为具有发光装置的像素电路来测量发光装置的实际亮度，以产生测量信息。 该装置还根据测量信息以及当像素电路处于校正基准状态时的灰度值和亮度值之间的关系来计算灰度劣化特性。 劣化值计算计算发光装置的转换效率的转换效率恶化值，以将提供给灰度值的驱动电流转换为亮度，以产生转换效率劣化特性信息。 最后，根据该灰度劣化特性，计算与像素电路的驱动电流有关的劣化的电流量劣化值的电流量劣化值，生成规定像素电路的电流量劣化特性信息。

公开(公告)号：US08854283B2

公开(公告)日：2014-10-07

申请号：US12591288

申请日：2009-11-16

申请人： Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G06F3/038 ,  G09G5/00 ,  G09G5/10 ,  G09G3/32 ,  H01L27/32

CPC分类号： G09G3/3225 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2320/02 ,  H01L27/3223 ,  H01L27/326 ,  H01L27/3265 ,  H01L27/3276

摘要： In a display apparatus, a plurality of pixels are disposed in an array. Each pixel includes: an electro-optical element; a write transistor that writes a picture signal; a drive transistor that drives the electro-optical element according to the picture signal written by the write transistor; a hold capacitor, connected between the gate and source electrodes of the drive transistor, that holds the picture signal written by the write transistor; and an auxiliary capacitor, connected between the anode of the electro-optical element and a fixed potential node. Each auxiliary capacitor is formed straddling the boundary between specific pixel pairs adjacent in the pixel layout direction on a pixel row. An island metal pattern is formed between pixel pairs other than the specific pixel pairs, at a site corresponding to that of the auxiliary capacitor.

摘要翻译： 在显示装置中，将多个像素配置成阵列。 每个像素包括：电光元件; 写入晶体管，写入图像信号; 驱动晶体管，其根据写入晶体管写入的图像信号驱动电光元件; 保持电容器，连接在驱动晶体管的栅极和源极之间，其保持由写入晶体管写入的图像信号; 以及连接在电光元件的阳极和固定电位节点之间的辅助电容器。 每个辅助电容器跨越像素行上的像素布局方向上相邻的特定像素对之间的边界形成。 在对应于辅助电容器的位置处，在特定像素对之外的像素对之间形成岛状金属图案。