公开(公告)号：US20150262546A1

公开(公告)日：2015-09-17

申请号：US14728581

申请日：2015-06-02

Applicant: Toppan Printing Co., Ltd.

Inventor： Jun OGURA ,  Masanori Sakamoto

IPC: G09G5/00 ,  G09G5/18 ,  G06T1/60 ,  G09G3/30

CPC classification number: G09G5/003 ,  G06T1/60 ,  G09G3/30 ,  G09G3/3275 ,  G09G5/18 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/04 ,  G09G2320/043 ,  H01L51/50

Abstract: A display device includes pixel circuits each including a transistor and supplies a drive current to each light emitting element, scan lines and data lines connected to the pixel circuits, a select driver which selects a scan lines, and a control unit which controls driving of the select driver. The control unit repeatedly executes a gradation display operation, a non-gradation display operation and a detecting operation in the order. In the gradation display operation, a gradation display voltage is applied to the pixel circuit connected to a selected scan line. In the non-gradation display operation, a non-gradation display voltage is applied to the pixel circuit connected to a selected scan line. In the detecting operation, a characteristic of the transistor of the pixel circuit connected to one or more scan lines is detected to correct the gradation display voltage based on a detection result of the detecting operation.

Abstract translation: 显示装置包括各自包括晶体管的像素电路，并且向每个发光元件提供驱动电流，连接到像素电路的扫描线和数据线，选择扫描线的选择驱动器，以及控制驱动器 选择驱动程序 控制单元按顺序重复执行灰度显示操作，非灰度显示操作和检测操作。 在灰度显示操作中，灰度显示电压被施加到连接到所选择的扫描线的像素电路。 在非灰度显示操作中，对连接到所选择的扫描线的像素电路施加非灰度显示电压。 在检测操作中，检测连接到一个或多个扫描线的像素电路的晶体管的特性，以基于检测操作的检测结果校正灰度显示电压。

公开(公告)号：US11347089B2

公开(公告)日：2022-05-31

申请号：US17208463

申请日：2021-03-22

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Wataru Ohkubo ,  Masanori Sakamoto

IPC: G02F1/133 ,  G09G3/00 ,  E06B9/24 ,  G02F1/1343 ,  G02F1/137

Abstract: A light control device including a drive voltage output unit that outputs a drive voltage, a control unit that causes the drive voltage output unit to gradually increase or gradually decrease a magnitude of the drive voltage, a light control sheet including light control units connected in parallel to the drive voltage output unit and formed such that light transmittances of the light control units change according to magnitudes of voltages applied to the light control units, and a voltage dividing circuit which is connected to one of the light control units and divides the drive voltage common to each of the light control units such that the magnitude of the voltage applied to the light control unit connected to the voltage dividing circuit differs from the magnitude of the voltage applied to at least one of other light control units.

公开(公告)号：US11086160B2

公开(公告)日：2021-08-10

申请号：US16371288

申请日：2019-04-01

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Masanori Sakamoto ,  Shinobu Sumi ,  Wataru Ookubo

IPC: G06F3/044 ,  G06F3/0488 ,  H01H36/00 ,  G02F1/1333 ,  G02F1/133 ,  G02F1/1343 ,  G06F3/0354

Abstract: A light control device including a light control sheet including light control units each reversibly change light transmittance and positioned according to a first arrangement that has a regularity, a detection sheet including detection units each detect external input and positioned according to a second arrangement that has a regularity same as the regularity of the first arrangement, a driving unit that outputs to each of the light control units a change signal for changing light transmittance, and a light control processing unit which associates each of the detection units with at least one of the light control units, and causes the driving unit to output the change signal to the light control unit associated with the detection unit that has detected the external input.