公开(公告)号：US20190051240A1

公开(公告)日：2019-02-14

申请号：US15991865

申请日：2018-05-29

Applicant: JOLED INC.

Inventor： Toshikuni NAKATANI ,  Hirofumi MIYASHITA

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A current limiting circuit is used in a display device which includes a display panel having pixels each of which includes a light emitting element and a panel power source which supplies an application voltage to be applied to each of the light emitting elements included in the pixels. The current limiting circuit detects a supply current supplied from the panel power source to the display panel, and reduces the application voltage when a value of the supply current detected is greater than a threshold.

公开(公告)号：US20170011684A1

公开(公告)日：2017-01-12

申请号：US15116316

申请日：2014-12-24

Applicant: JOLED INC.

Inventor： Toshikuni NAKATANI

IPC: G09G3/3233 ,  G09G3/3283 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/2092 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/3291 ,  G09G3/3696 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/08 ,  G09G2320/0646 ,  G09G2330/028

Abstract: A display device in the present disclosure includes: a plurality of pixel circuits that are arranged in a matrix and supplied with power through a first power supply line maintained at a first voltage and a second power supply line maintained at a second voltage having a positive value less than the first voltage; a first power supply circuit of a synchronous rectification type that outputs the first voltage to the first power supply line by chopping an input voltage; and a second power supply circuit of the synchronous rectification type that outputs the second voltage to the second power supply line by chopping the first voltage.

Abstract translation: 本公开的显示装置包括：多个像素电路，其被布置成矩阵状并通过保持在第一电压的第一电源线和维持在具有正值的第二电压的第二电源线提供电力 小于第一电压; 同步整流型的第一电源电路，通过切断输入电压将第一电压输出到第一电源线; 以及同步整流型的第二电源电路，通过切断第一电压将第二电压输出到第二电源线。

公开(公告)号：US20160372035A1

公开(公告)日：2016-12-22

申请号：US14902101

申请日：2014-06-05

Applicant: JOLED INC.

Inventor： Toshikuni NAKATANI

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2320/0214 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2330/00 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/045 ,  G09G2360/16

Abstract: An EL display device includes a display screen; a first gate signal line; a second gate signal line; gate driver ICs (circuits); a current generating circuit which supplies a current to EL elements; a current amount obtaining circuit which obtains a magnitude of a current flowing through a plurality of pixels; and an on-voltage generating circuit which generates a control voltage output by the gate driver IC (circuit) to the first gate signal line. Each of the pixels includes a first switching transistor. The control voltage is a voltage which causes the first switching transistor to be in a conducting state. The on-voltage generating circuit varies a first control voltage based on an output result from the current amount obtaining circuit.

Abstract translation: EL显示装置包括显示屏; 第一栅极信号线; 第二栅极信号线; 栅极驱动器IC（电路）; 向EL元件供给电流的电流产生电路; 电流量获取电路，其获得流过多个像素的电流的大小; 以及导通电压产生电路，其生成由栅极驱动器IC（电路）输出到第一栅极信号线的控制电压。 每个像素包括第一开关晶体管。 控制电压是使第一开关晶体管处于导通状态的电压。 导通电压电路基于来自电流量获取电路的输出结果来改变第一控制电压。